Abstract: A time equipment with time zone mechanism includes a 24-hour dial, an hour hand and a minute hand mounted for rotating above said dial, a movement for driving said hour hand and minute hand to rotate one revolution per 24 hours, a time zone mechanism, and a setting mechanism for said time zone mechanism. The time zone mechanism comprises a time zone disc coaxially mounted under the dial and a driving device for driving the time zone disc to rotate one revolution per 24 hours. The time zone disc has an outer time zone ring portion disposed around the periphery of the dial and provided until a plurality of time zone city indicators arranged in the same order as the time zones.

Abstract: The invention concerns a synchronisation device for synchronising the analogue display with the digital display of a timepiece.The device includes a contact wheel (1), driven by the hour-wheel of the timepiece, on which is fixed a contact spring (2) with several arms (4, 6; 8, 10). The arms make contact with conductive strips (T1-T5) distributed according to a particular arrangement on a printed circuit board associated with the device according to the invention. Via the geometry of the arms, the strips are periodically connected in different configurations. The series of combinations forming the possible different configurations is repeated periodically. The device further comprises an electronic control signal generating device for storing the initial position corresponding to a certain configuration of the contacts. Since the series of combinations is given, each movement of the hour-wheel can be detected.

Abstract: An audio entertainment/navigation system with updated time readings is provided especially for a mobile user. The navigation system receives GPS position information signals which are processed to determine current position latitude and longitude coordinates and direction of travel. A destination database includes a plurality of categorized destinations and corresponding destination position coordinates pertaining to the destinations. The destination database is stored on an interfacable memory card. A time change database is also included which contains time-related information such as time zone boundaries and special time change rules such as daylight saving time. The time-related information may be loaded into the system from an interfacable memory card. A time of day as referenced to a reference time and the date are also computed from the GPS signals.

Abstract: An universal time equipment enables the user to ascertain the times of 24 time zones around the world easily, precisely and simultaneously, including a stationary dial mounted above a 24-hour movement which projects at least an hour shaft and a minute shaft therefrom, a transparent time zone disc being secured to rotate above the dial, and a minute hand mounted to said minute shaft to rotate above the time zone disc. The dial provides an outer hour indicating ring portion, an inner minute indicating ring portion adjacent to the outer hour indicating ring portion, and a central time condition indicating portion which is divided into four time conditions for facilitating the user to ascertain the time condition of the time observed. The time zone disc has 24 time zone indicators provided in the outer periphery thereof, a transparent central portion for revealing the dial underneath, and a sun mark positioned adjacent to the hour indicating ring portion and aligned with one of the time zone.

Abstract: A time equipment includes a case, a dial, and an hour and a minute indicating hands mounted for rotating above the dial. A movement is installed in the case for driving the hour indicating hand to rotate one revolution in 24 hours. A time setting device is installed in the case for setting the time equipment on time. The dial has an hour portion, a minute portion and a period portion, in which the hour portion inscribes two sequences of numerals ordered by increasing value from 1 to 12. The minute portion is positioned adjacent to the hour portion and inscribes a sequence of numerals ordered by increasing value from 1 to 60. The period portion is position at the central area and encircled by the hour portion, which has a central cross inscription having a vertical line extending from top to bottom and a horizontal line extending from right to left so as to divide said period portion into four sections. An alarm generating mechanism can provide more than one alarm signal at predetermined time.

Abstract: According to this method the longitude of the place where one is situated on the surface of the earth is determined by comparing the local time with the time of a reference time zone, and the latitude of the place where one is situated is determined by measuring the inclination of the earth's magnetic field in relation to the horizontal.

Abstract: A universal timepiece (10) having a manually operable outer ring (33) for selecting one of twenty-four time zones, where a display indicates the time of the time zone selected. For this purpose a device for detecting the rotational position of the outer ring (33) is provided which has a special arrangement of permanent magnets (39a-j) in the outer ring (33) and of magnetic switches (27a-h) in the timepiece casing (11, 12) in a specific number as well as evaluating electronics in the timepiece movement (21). The permanent magnets (39a-j) determine the binary statuses of the magnetic switches (27a-h), which are interpreted together as a signal or as a status pattern. The special arrangement of the magnetic switches (27a-h) and the permanent magnets (39a-j) effect for each rotational position an intrinsic status pattern different in each case from the others which permits a clear indication of the selected rotational position of the outer ring (33).

Abstract: A multimode electronic timepiece includes a display, a plurality of manually actuated switches, and an integrated circuit having memory locations. The integrated circuit is programmed to keep time and to provide a plurality of modes, including time-of-day and at least one alternate time zone. The integrated circuit is further programmed to permit an operator of the multimode electronic timepiece to set the time-of-day and the alternate time zone in response to actuation of selected switches, and to store the time-of-day and the alternate time zone data in the memory locations. The improvement comprises a flag means which will copy the contents of the memory location storing the time-of-day data to the memory location for the alternate time zone data when the time-of-day has been set and the alternate time zone has not been set by the operator.

Abstract: An international time indicating system is associated with a telephone for automatically displaying a specific time and date of a called place upon entering the international access code, called country code, and called area code if necessary. A called time and date are calculated via time zone offsets stored in system memory by determining the difference in time between a time zone of a local place of a caller and a time zone of a called place. The offsets are defined with respect to a reference time zone. The difference in time is then offset in order to determine the called time.

Abstract: A structural improvement for the global timepiece principally makes use of an hour wheel which engages and drives a post hour wheel and thereto engages and drives a city wheel through a post hour pinion which is on the same shaft as the post hour wheel, and sequentially lock-to-fit to rotate the city wheel and the city dial through the lock jumper, thereby makes the face become an outer ring which is a stationary time ring, a center ring which is a otationally adjustable city dial and an inner ring which is a dial indicating the local time; in this way and through the simple judgement, one is able to read simultaneously, from the same timepiece's face, the time of each time zone's city all over the world, also as far as time adjustment as concern, one can use the hour wheel or city dial or both to adjust the time inquired. Besides, the face design of the present invention can read clearly and easily the date everywhere through the indication of the international dateline.

Abstract: An electronic timepiece, to display always accurate current local time by city without any change-over to and from the summer time.In an electronic timepiece, to adjust time automatically at change-over to and from the summer time, comprising a city's summer time date memory means 111 for memorizing the starting, the ending and etc. date value by city, a summer time period comparing means 107 for judging if in the summer time through comparing the time calculated by city's current time calculating means 106 with the summer time value memorized in the city's summer time date memory means 111, a time adjusting means 108 for adjusting time when judged by the summer time period comparing means 107 that it is in the summer time, and a displaying means 109 for displaying time.

Abstract: The invention concerns an analogue display timepeice exhibiting at least one universal time display mode. The timepice comprises:time display means constituted in the form of an hour hand and a minute hand,time zone display means comprising at least one analogue indicating organ of said time zones and able to provide data relating to the geographical position of said time zones by reference to the earth,motor means able to drive said analogue display organs facing indications of respectively time and place,electronic control means arranged to drive said display means, this invention being characterized in that said analogue organ enabling the time zones to be indicated is comprised of at least one of the two time display hands, for example the hour hand, brought by electronic control means into a particular position in conjunction with the other hand, notably the minute hand.

Abstract: A clock apparatus comprising an EEPROM 8 to store a shipping area code, an internal clock 12, a time button 2, and a liquid crystal display section 5. The time of the internal clock 12 is set by the time button 2, the shipping area code is set by the EEPROM 8, and the area information is set on the basis of the shipping area code. When the shipping area coincides with the purchase area, by merely setting the time of the purchase area, the world time can be easily obtained.

Abstract: In a time keeping system providing time of day by radio signal to remote time keeping devices, the transmitted time of day is provided in association with a given time zone identification. The time keeping devices receiving the time of day reference and the time zone identification include a time zone preference identification. By comparing the time zone preference and the time zone identification transmitted, the time keeping device can, when necessary, offset the received time of day value according to user preference for display relative to a preferred time zone.

Abstract: A radio timepiece is disclosed which receives and decodes a time information signal from a remote transmitter and displays a time information. The timepiece includes a manual time zone switching circuitry deigned to permit use of the timepiece in time zones adjacent to the one in which the transmitter is located, while providing a user-friendly selection and display of the time information. The timepiece includes an electro-optical display providing a cartographical representation of the transmitter time zone and several adjacent time zones. A summing register is provided to manually offset the received time information and actuate a graphic display indicative of the time zone to which the offset time display corresponds. The summing register may be cyclically incremented by a single switch, or incremented, decremented or zeroed by appropriate actuation of two switches.

Abstract: A dual center wheel (38), provided with a plurality of dual center wheels (36) for display of times in different time zones, driven on a hands wheel for displaying the current time, and a dual adjustment member (49) adjusted by an external adjustment member (9), is formed from a gear (38a) and a pair of planetary wheels (44, 45) supported on the gear (38a). The dual center wheel (38) is also provided with a dual wheel (43), for which the rotation is regulated by means of a jumper spring, which engages one of the planetary wheels (44), and with a dual hour wheel (46) which engages the other planetary wheel (45) rotating on the same shaft as the dual wheel (43). The dual hour wheel ( 46 ), of which rotanional speed is reduced as a result of the rotation of the dual center wheel (38), makes one turn of an integer fraction of a rotation for a one pitch rotation of the dual wheel ( 43 ).

Abstract: A timepiece for simultaneously indicating the time for at least two time zones, the timepiece comprising a watch movement; a dial, an hour indicating hand and a minute indicating hand, the hour indicating and minute indicating hands being mounted for rotating above the dial, for indicating the time for a first time zone; a first setting mechanism for the hands, first driving means for connecting the hour indicating and minute indicating hands to the watch movement, so as to rotate the hands for indicating the time over 12 hours; a first rotatable disc for indicating the time over 24 hours; second driving means for connecting the first rotatable disc to the watch movement, so as to rotate the disc of one revolution in 24 hours; a second rotatable disc for indicating the time zones; a second setting mechanism for the first and second rotatable discs, the mechanism comprising first setting means operable for setting the angular position of the first rotatable disc, independently of the rotation thereof by the se

Abstract: A timepiece including: an inner hours pipe (2) supporting a lower wheel (6), an outer pipe (30) mounted on the inner pipe (2) and supporting an upper wheel (32) arranged above the lower wheel (6), a star (12) mounted on the hours pipe (2) and fixed in rotation to the lower wheel (6), two driving rollers (20) cooperating with the star (12) and driven by the upper wheel (32) and a spring (26) bringing back the roller (20), such timepiece being characterized in that the lower wheel (6), which constitutes an hours wheel in mesh with a dial train, is mounted to be free in rotation relative to the inner hours pipe (2), while the upper wheel (32) forms a correction wheel capable of acting on the hours pipe (2) in order to modify the hour displayed.

Abstract: A world watch has an hour hand and a minute hand for usual time indication, a plurality of symbols disposed on a dial to represent areas having respective time differences, an area including hand for specifying one of the areas by indicating one of the symbols, a local time indicating hand for indicating the local time of the specified area at least in hours, and a date indicating hand for indicating a date of the specified area. The world watch comprises counters for counting the numbers of driving signals used for driving the area indicating hand and local time indicating hand, respectively; and a drive controlling circuit for generating, when the count of at least one of the counters reaches a predetermined value, a driving signal for driving the date indicating hand in a normal or reverse turning direction based on a judgment whether the predetermined value has been described by an increase in the count or by a decrease in the count.

Abstract: An analog universal watch has an area dial 4 showing different areas of the world attached to an area dial spindle 10 and an area dial wheel 11 linked to a timepiece drive mechanism through a minute wheel 15. A pawl fastened to an hour wheel 17 engages with a ratchet wheel 12 fastened to the area dial spindle 10 so that an hour hand spindle 16 is driven indirectly. Provisions are made to permit correcting the area dial spindle 10 by means of a hand setting stem through the minute wheel 15, along with the independent correction of the hour wheel 17 by means of the hour hand correcting wheel 25 that engages with and releases the hand setting stem. Thus, the timepiece permits not only the ordinary correction of the pointers but also the setting of the hour hand alone to the local time of the desired area.

Abstract: A hand display device having a hand driven by a pulse motor in which graduations or symbols representing plural types of functions to be indicated by the hand are arranged so as to display the mutal positions on a dial, and by selecting one of the functions, the hand stays at a position of graduation or symbol corresponding to a selected function for a relatively longer time than that corresponding to unselected function to display functional display selectively.

Abstract: A universal world clock (10) for indicating universal standard and fast time at any geographical location in the world. A south polar projected world map superimposed onto a manually rotatable map disk (14) is divided with twenty-four time zone indicator lines (20) representing the time zones of universal time, the map disk (14) being positioned such that the user's geographic location is vertically oriented to represent map north, and the map disk (14) being further positioned so that the time zone indicator lines (20) are aligned with time zone pointers (22) located on a separate zone pointer disk (16) which is fixed in position over the map disk (14). A time disk (18) having hour indicators differentiated by a.m. and p.m.

Abstract: An electrically driven, world globe displaying Greenwich time, clock time, week of the year, season of the year and daylight-nighttime of a particular geographic location and a particular time of day relative to the rest of the world comprising a globe displaying a geographic arrangement of the world, a Greenwich time zone dial fixedly attached to said globe displaying Greenwich time relative to longitudinal locations of the geographic arrangement of the world, said globe and said Greenwich time zone dial together rotating in a first direction one revolution every twenty-four hours, a clock time zone dial rotating in a second direction opposite to said first direction, rotating one revolution once every twenty-four hours, a stationary geographic zone dial indicating cities and countries of the world.

Abstract: A portable receiver has a time of day clock and receives a signal indicative of the location of the portable receiver. The portable receiver has a memory which has a plurality of locations with corresponding time zones. Upon reception of the location signal, the receiver determines the time zone of the location and the time zone of the time of day clock. The time of day clock is then adjusted to correspond to the time zone of the location. The location signal may also be used to adjust the operating frequency of the receiver.

Abstract: A device for determining the time anywhere in the world, simultaneously, relative to any selected geographical location. A circuit map is positioned over a frame and is rotatable in a clockwise direction relative to the frame, the map being a south pole projection of the world. The map rotates about the center point of the map corresponding to the south pole. Twenty-four evenly spaced first time zone positions are provided on the frame beyond the outer boundary of the map and together they define a circle which is outwardly concentric with the map. Twenty-four evenly spaced second time zone positions are provided on and around the perimeter of the map so as to define a second circle between and concentric with the circle defined by the first time zone positions and the map. Each first and second time zone position corresponds to a distint hour of a twenty-four-hour time period.

Abstract: A multimode electronic timepiece includes a display, an audible alarm device, a plurality of manually actuated switches, and an integrated circuit programmed to keep time and to provide a plurality of modes including time-of-day, alternate time zone and alarm setting modes. The integrated circuit is programmed to permit an operator to set time-of-day in response to actuation of selected switches, to set alternate time zone time in response to actuation of selected switches, and to set alarm set time in response to actuation of selected switches. The integrated circuit has a memory location for time-of-day and is programmed to selectively actuate the audible alarm device when the alarm set time corresponds to time-of-day in said memory location.

Abstract: A world timepiece for normally displaying the time of a home city and for selectively displaying the time of another city situated in another time zone. The world timepiece includes a plurality of selector switches corresponding to main cities located in different time-lag zones into which the world is divided. A display unit normally displays the time of the user's home city and, upon actuation of one of the selector switches, the display unit displays the time of the selected city designated by the actuated selector switch. A city of an arbitrary time-lag zone can be stored in an assigned city storage circuit, and the time of the assigned city can be displayed by the display unit by actuating an optional switch.

Abstract: A programmable world timepiece features the ability to audibly announce the date and time of a number of cities around the world. The timepiece also allows the user to easily change a home or present city date and time without having to use multiple switches or push buttons. The timepiece also provides for the automatic restoration of a home city time, date and identification number to a display without having to select or use additional indicators within 0.5 seconds.

Abstract: An electronic watch includes a "traveler's time" function which can be activated when a wearer leaves on a long trip, east or west by plane, boat or the like. This function will advance or retard the operation rate of the watch so that after a user-determined trip time has elapsed, the watch will display the actual local time at the arrival location, and the watch will resume operation at its normal rate. By glancing at the watch from time to time, a traveler can become accustomed gradually to a time change caused by his travel through different time zones so that the psychological effects of "jet lag" are minimized. The watch may also be used by a non-traveler to cause time to advance at a non-standard rate for other reasons. The watch includes a microprocessor (10), a quartz crystal (20) for providing a time standard, a display (30) for displaying the time, and a set of switches (40-90) for activating the watch's functions.

Abstract: A time conversion universal clock includes a time conversion transmission mechanism having one output connected with a time recording element, and another output coupled with a universal time zone map, so that the time recording element drives the universal time zone map in a counter-clockwise direction of rotation. The universal time zone map displays at least some of the world's geographical regions in a polar projection in terms of time zones corresponding thereto. A time conversion transmission mechanism of the time conversion universal clock has a rotary input at a first rotation rate, and provides a rotary output at a second rotation rate; the ratio of the first to the second rotation rates is defined as a transmission ratio, which is made equal to 0.5 by two pulleys, or, alternately gearwheels, of a coupling device of the time conversion mechanism, which engage one another, and have a diameter ratio of two.

Abstract: A portable medicament dispenser and patient medical information storage apparatus utilizes a housing containing external access to an alpha/numeric keyboard, a visual display having a clock display, an alpha/numeric display portion, and a plurality of control function keys which may be used to enter the name of medicaments and the times that they should be taken throughout the day, coupled to a memory storage mechanism. An audio device enunciates the time in which all of the medicaments, in bulk quantity, contained within a compartment of the apparatus, may be retrieved by the user. A cover, over the compartment, opens automatically at the times that any medicaments are to be taken by the user, who then selects those medicaments he is to take at that time. By programming the keyboard, patient information may be inserted into the storage mechanism, for use during emergencies.

Abstract: An electronic watch includes a "traveler's time" function which can be activated when a wearer leaves on a long trip, east or west by plane, boat or the like. This function will advance or retard the operation rate of the watch so that after a user-determined trip time has elapsed, the watch will display the actual local time at the arrival location, and the watch will resume operation at its normal rate. By glancing at the watch from time to time, a traveler can become accustomed gradually to a time change caused by his travel through different time zones so that the psychological effects of "jet lag" are minimized. The watch includes a microprocessor (10), a quartz crystal (20) for providing a time standard, a display (30) for displaying the time, and a set of switches (40-90) for activating the watch's functions. The microprocessor includes a set of registers (145 to 160) for storing the departure, destination, and traveler's times, and for controlling operation of the watch.

Abstract: A watch has an hour wheel (17) which can be driven in rotation around an axis of rotation (10) by a drive, and has a rotatable universal-time hour wheel (13) arranged coaxially thereto. These two hour wheels are connected to each other by a spring-loaded detent connection. The universal-time hour wheel (13) is rotatably settable stepwise relative to the hour wheel (17) by a setting element. It overcomes the spring force of the detent connection, in which connection the setting element can be coupled to the universal-time hour wheel (13) for setting the latter and can be decoupled again after the setting. The hour wheel (17) is connected to an hour hand (2), and a universal-time hour hand (3) is connected to a universal-time hour wheel (13), by which means the times of two different time zones can be indicated on a stationary dial face.

Abstract: An electronic watch includes a "traveler's time" function which can be activated when a wearer leaves on a long trip, east or west by plane, boat or the like. This function will advance or retard the operation rate of the watch so that after a user-determined trip time has elapsed, the watch will display the actual local time at the arrival location, and the watch will resume operation at its normal rate. By glancing at the watch from time to time, a traveler can become accustomed gradually to a time change caused by his travel through different time zones so that the psychological effects of "jet lag" are minimized. The watch includes a microprocessor (10), a quartz crystal (20) for providing a time standard, a display (30) for displaying the time, and a set of switches (40-90) for activating the watch's functions. The microprocessor includes a set of registers (145 to 160) for storing the departure, destination, and traveler's times, and for controlling operation of the watch.

Abstract: A device for aiding resynchronization of a personal body clock of a traveller, said device comprising a first data series representing the personal body time of the traveller and a second data series representing a local time at the destination of the traveller. Both said data series include representations of twenty-four hours and are displaceable with respect to each other. The mutual displacement of the data series is carried out with reference to the time of the departure of the traveller and the duration of the journey of the traveller to give a readable display of a procedure to resynchronize the personal body clock of the traveller, the procedure comprising controlling exposure of the body of the traveller to daylight.Certain embodiments of the device are electronic, and are in the form of a calculator or in the form of a program for a calculator or for a wrist watch.

Abstract: A world timepiece which gives information about time or date of areas in different time zones includes an input keyboard for inputting area code information corresdponding to an area the time or date of which is required, a code memory for storing the inputted area code information, a counter for counting and storing the time and date of the areas in different time zones, a processor for detecting the operation of a mode selection key, and a display responsive to the processor for displaying the time, the date and the area code in turn of the area corresponding to the area code information of the code memory.

Abstract: A time display device comprising: a key input unit; a display unit; a clock unit for timing the standard time; a city name memory unit storing city names of three figures; a time difference memory unit storing the time differences of individual cities; a city name call unit for displaying the city names in a listed form in the display unit; a city name selection unit for selecting one city name from those listed; a city time calculation unit for determining the time of the selected city name by calculations of the standard time and the time difference and for outputting the determined time to the display unit; and city name rearrangement unit for enabling a city name of high selection frequency to be preferentially called by storing the selected city name in the head of the city name memory unit.

Abstract: A clock or watch can display 24 local times of 24 selected cities or places around the world which represent the 24 time zones around the globe respectively, including the local time of the place where the user lives no matter where the user or the watch is in the world. In addition, an alarm time can be set for the local zonal time as well as for any other 23 zonal times in the world.

Abstract: A world timepiece having means for controlling the time correction of the fundamental time that the fundamental time is interlocked to the time of a region having time difference when the correction amount is shorter than a time-differential unit time (thirty minutes or one hour), and is not interlocked when the correction amount is equal to the multiple of the time-differential unit time.

Abstract: A timepiece of a twenty-four hour system for travelers, which is capable of correcting a time differential by one touching operation. A movable main dial (D1) is turned to merely align the index number of a destination with that of a departure place on a sub-dial (D2). The numerals of 1-24 on an hour numeral band indicate the hours and also function as codes which represent the time zones of between GMT-11 and GMT+12, and an auxiliary index (C) is provided to supplement these codes therewith. The timepiece is made on the basis of such a "global time series (GTS) system" which constitutes a novel device. A variable pattern band (V) which equally stretches over a movable band (K) and a timepiece body is made so that it shows two modes of variations in a normal time position and a half time position. Owing to this arrangement, the time in all time zones in the world including the time differentials of a unit time of thirty minutes can be displayed.

Abstract: A world time watch has a liquid crystal display device including a time zone display and a time display. The time zone display is provided to display the time difference between a selected place and the Greenwich Mean Time, and the time display is provided to display the time of the place corresponding to the time difference displayed in the time zone display. A printed place name list is provided around the liquid crystal display device. The place name list includes a plurality of numbers each of which represents the corresponding time difference of a particular place.

Abstract: The assembly includes a keyboard (16) for operator selection of the area code or airport designation of a geographical location. A memory means (20) contains information of sunrise time, sunset time and twilight duration for each area code or airport designation selected. A counter means (30) updates and stores codes representative of the time and date. A demultiplexer (47), registers (44) and a register counter (49) accumulates the data from the keyboard and from the months (48) and days (42) counters to be sent to the memory means (20) to be decoded for selection of the necessary information. A program control (50), such as a microprocessor, accumulates the data from the memory means (20) and counter means (30) to generate a signal to and present on the video display screen (12) parallel vertical sections (60, 62, 64) representing juxtaposed hours of the day at the selected geographical location including each of light, dark and twilight hours.

Abstract: A watch comprising at least a minute hand, an hour hand and a knobbed shaft which can occupy an extended axial position known as a correcting position.Minute-by-minute correction or correction by whole time zones is operated with the knobbed shaft in the same extended position by the selection of the speed at which the knob is rotated. Time zone correction always uses as point of reference the real time at the moment of actuation of the knob into the extended position, and the watch includes means operative to cancel any step-by-step correction of the minute hand which may have preceded the time zone correction.

Abstract: A time display system has a decoder (22) to decode a received time signal indicative of the time at that instant, and controls a time display device (8) to display the time indicated by the time signal. The system also includes means (20) to generate a position signal indicative of the actual time displayed by the display device (8). The decoded time signal and the position signal are compared by a comparator (21) and if they differ, a time adjust signal is generated by time adjustment means (14) to correct the displayed time. Preferably, the time signal is a high frequency signal modulated with time data.

Abstract: A clock for indicating time for effectively all the countries and time zones of the world, the hour hand of the clock being in the form of a disc that rotates once every twenty-four hours against a twenty-four hour scale. The disc having projected thereon a map of the world centered on the South Pole with the majority of the time zones positioned in accurate longitude around the periphery of the disc. The clock also included indicators for each time zone to provide simple visual indication of the time in any zone or country of the world.

Abstract: A novel twenty-four hour clock providing a continuous display representative of the rotation of the Earth relative to the heavens, and the changing position of illustrated geographic areas of the Earth relative to the fixed position of the Sun, thereby providing the viewer with a visual display of the local time of day and also the time of day in each of said geographic areas. The present clock also includes a fixed midnight mark representative of a location in the heavens, 180.degree. around the Earth from the fixed location of the Sun, coinciding with the occurrence of midnight at each geographic area of the Earth as said geographic area passes thereby, the geographic area in which the Fiji Islands and New Zealand are located being designated the International Date Line.

Abstract: A novel twenty-four hour clock (10) providing a continuous display representative of the rotation of the Earth relative to the heavens, and the changing position of illustrated geographic continents (33a, etc.) of the Earth relative to the fixed position of the Sun, thereby providing the viewer with a visual display of the local time of day and also the time of day in each of said geographic continents. The present clock (10) includes a continuous display of fixed indicia (35a and 36a) representative of a location in the heavens, 180.degree. around the Earth from the fixed location of the Sun, coinciding with the occurrence of midnight at each geographic area of the Earth as said geographic area passes thereby, the geographic area in which the Fiji Islands and New Zealand are located being designated the International Date Line (30).

Abstract: The data display device has a memory section to store a specific day or days for different countries or regions of the world. The specific day data read out from the memory section, and which is peculiar to a specific country or region, is transferred to a display section to be displayed thereby.

Abstract: A salat time alarm electronic timepiece is implemented with a one chip microcomputer. An outer read only memory is installed in the electronic timepiece for storing the sunrise time data and the sunset time data at various cities in world. The system reads out sunrise time and sunset time data from the outer read only memory and calculates five salat times of the present day. The thus calculated salat time data is stored in a storage means and compared with the current time data to provide an alarm sound when the current time reaches one of the five salat times.

Abstract: An electronic timepiece has a display unit capable of displaying different times in two or more regions in the world, an alarm time setting circuit capable of setting alarm times in the respective regions, and a buzzer device for sounding, at alarm times, different alarm sounds associated with the respective regions.