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Time Zone Settings

Since Synchronize will be keeping users’ appointments, an important requirement for trouble-free Synchronize use is to have the proper time zone setting in place with consistent rules for transitions into and out of daylight savings time for all users. This is especially true if users are located in different time zones. Users with differing time zone settings or inconsistent transition rules may not always see appointments displayed at the correct times on their calendars. Any inconsistencies must be addressed before users are able to use Synchronize reliably. To ensure consistent behavior, you must first make sure that all users who are scheduling within the same time zone have the same time zone configuration setting. For Windows and Macintosh users, this must be set in the configuration options/preferences window (also see below for instructions on setting default configuration options). For UNIX users, the TZ environment variable is used to specify the time zone. If necessary, this variable can be set by uncommenting and editing the following line in the bin/synchronize.sh client startup script:

    TZ=timezone; export TZ

You must substitute your correct time zone (e.g., PST8PDT) in place of timezone above. Although users’ time zone settings may be set consistently, it cannot always be assumed that daylight savings transitions are handled correctly (especially when running clients for multiple platforms in non-U.S. time zones). A convenient mechanism for keeping all Synchronize users running with the same daylight savings transition rules is by using the db/database/tztab file. Instructions for editing the file are included in the file. When this file is present on the server, clients attempt to match the value of their time zone setting to the corresponding entry in the file. If a match is found, the daylight savings transition rules corresponding to that entry in the file are followed. It is important to not change the rules once events have been scheduled. If events are scheduled under one set of transition rules and then those rules are changed later, the previously scheduled events may not appear at their correct times.