Abstract: A method, system, and computer program product for conveying a changing local time zone in an electronic document such as an electronic calendar. The method comprises: providing at least one travel document containing travel information corresponding to at least one trip; determining a local time zone for each entry in the electronic document scheduled to occur during each trip, based on the travel information contained in the at least one travel document; updating the electronic document to reflect local time zone information for each entry scheduled to occur during each trip; and displaying the local time zone information in the electronic document for each entry scheduled to occur during each trip, independently of a current date.