php - Handle time from different timezone and store into mysql -

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i making website facebook, bad thing is.. there many timezone , hard convert utc. server using utc default setting, may know how manage in more generic way, convert difference time zone utc time, , display preset timezone setting ?

additionally, may know how store mysql database php ?

2011-04-10t08:13:30+0000

use gmdate() function, formats time in utc.


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