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wntRemoteTime and Daylight Savings Time

Keywords: 	   wntRemoteTime Daylight Savings Time	  DST

Question:

I ran wntRemoteTime on an NT server in London, England(GMT) from one in San Francisco(PST). The london box is set to GMT timezone and shows the correct time of day (as evidenced by remote control).

wntRemoteTime option 1 reports the time as being 17:56. Remote control shows it as 18:56. I assume the diff is Daylight savings here in PST.

Option 2 shows 10:56, which is current time in PST. This isn't remote time, so it seems like it's irrelevant which server it targets?

When I run wntRemoteTime on a server here, 1 = 17:56 & 2 = 10:56. I'm confused as to how to interpret the results. The GMT time it reports is actually GMT - daylights?

Answer:

I'm a little fuzzy on how NT does its time calcualtions, but in general NT keeps its times in GMT time, then applies local information to obtain the actual time.

Option 1 should be GMT time. Apparently some daylight saving factor got applied?

Option 2 takes the remote time, applies all the local information and gives you a time. With luck it should be very close to actual local time. This means the computers are sync'ed up properly.

  1. Concerning remote time the 1 hour delay should be linked to the summer/winter time. The last access time (displayed by said dir) of a file changes when winter/summer time changes too.

  2. WinBatch pretty much stays out of the picture in computing times. We ask the system for the times and it hands them to us.

Article ID:   W14649
Filename:   wntRemoteTime and Daylight Savings Time.txt
File Created: 2000:08:01:10:03:18
Last Updated: 2000:08:01:10:03:18