[Boost-users] Specific Time Zone In boost::posix_time::ptime

Subject: [Boost-users] Specific Time Zone In boost::posix_time::ptime
From: Yan Cheng Cheok (yccheok_at_[hidden])
Date: 2010-01-24 22:40:24

I have the following time :
2010-01-25 03:13:34.384 - GMT Time Zone
2010-01-25 11:13:34.384 - My Local

I wish to convert to timestamp in ms. However, since I only obtain local time string from caller
"2010-01-25 11:13:34.384"

If I do it this way :

    // ts is "2010-01-25 11:13:34.384" (My Local)
    boost::posix_time::ptime t(boost::posix_time::time_from_string(ts));
    boost::posix_time::ptime end(boost::gregorian::date(1970,1,1)); 
    boost::posix_time::time_duration dur = t - end;
    // epoch is 1264418014384
    // 2010-01-25 11:13:34.384 (GMT)  -- But I want 2010-01-25 03:13:34.384
    // 2010-01-25 19:13:34.384 (My Local) -- But I want 2010-01-25 11:13:34.384
    long long epoch = dur.total_milliseconds();

Is there any way to tell boost::posix_time, that the ts string which it receives, is belong to My Local timezone?