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jQuery FullCalendar timezone syncronization



I am using the jQuery Fullcalendar plugin (http://arshaw.com/fullcalendar). I am only using it for "full day" events. When the user creates an event, I store it in my database via php as a date (2012-01-12). When sending the list of events to FullCalendar via ajax I convert the date to UNIX time.





The problem I am foreseeing, is the case where say the server is in the US with a US timezone, and the client is in Europe. The server sends an event for 2012-01-12 00:00:00 (US Time), which gets converted to a unix time. Then the client may see an event that is at 2012-01-12 08:00:00 (8 hours later).





How can I make sure that if an event is at midnight, then it's at midnight EVERYWHERE - no need adjust any timezone. If a user creates a full day event on January 12th, I need every user around the world to see it on that same date as well.


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