Abstract: Various techniques of time zone conversion are disclosed in this application. For example, in one embodiment, a computing device can include a synchronizer configured to receive a set of time zone rules from a server. The set of time zone rules individually including a time zone identifier, a start date, and a time offset from a standard time beginning from the start date. The computing device can also include a converter operatively coupled to the synchronizer. The converter is configured to selectively convert time zone sensitive data received at or stored on the computing device to a target time zone based on the set of time zone rules.

Abstract: The present invention allows a user to synchronize a device with at least two data sources that may cross-pollinate. The user's device is used to shuttle changes between the sources and resolves conflicts when changes are made to an item on multiple sources concurrently. The user's device keeps track of which version of the item each sync source has and synchronizes each of the sources to the latest version of an item.