Method: Time#utc_offset

Defined in:
time.c

#utc_offset ⇒ Integer

Returns the offset in seconds between the timezones of UTC and self:

Time.utc(2000, 1, 1).utc_offset   # => 0
Time.local(2000, 1, 1).utc_offset # => -21600 # -6*3600, or minus six hours.

Returns:

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# File 'time.c', line 5062

VALUE
rb_time_utc_offset(VALUE time)
{
    struct time_object *tobj;

    GetTimeval(time, tobj);

    if (TZMODE_UTC_P(tobj)) {
        return INT2FIX(0);
    }
    else {
        MAKE_TM(time, tobj);
        return tobj->vtm.utc_offset;
    }
}