I get current UTC time to be used internally from a Windows service application using GetSystemTime API. But I'm curious, is the time returned by that API Daylight-saving independent?
PS. Let me explain what I mean. Say, I call GetSystemTime and it returns 01:59:00 AM on the day when the Daylight-saving should take effect at 2 AM. I then call this API again in 2 minutes later (after the Daylight-saving change.) Will the second result be 2 minutes apart from the 1st result, or will Daylight-saving change be reflected in it?
Brian Roach :
UTC is ... UTC\n\n\n Daylight saving\n UTC does not change with a change of seasons, but\n local time or civil time may change if a time zone jurisdiction\n observes daylight saving time (summer time). For example, UTC is five\n hours ahead of (that is, later in the day than) local time on the east\n coast of the United States during winter, but four hours ahead while\n daylight saving is observed there.\n\n\nYour local time is an offset, and daylight savings (which is a local phenomenon) only changes the offset. ",
2012-12-16T00:48:40