Display the current time in GMT (World Time)

Simon Sheppard · 07 Aug 2006 19:10

This script gives the time in GMT

Obviously just add or subtract a number from this to get the time in any other time zone

einst3 · 28 Apr 2016 17:53

What if the time offset is fractional like 3.5 hrs can someone fix the script to account for this?
can it tell if the offset is plus or minus?

Shadow Thief · 28 Apr 2016 18:32

einst3 wrote:

What if the time offset is fractional like 3.5 hrs can someone fix the script to account for this?
can it tell if the offset is plus or minus?

Yes, it will return a negative number if you're located to the east of the Prime Meridian.

einstein1969 · 28 Apr 2016 23:35

It's correct?

  Local time: 00:28
  GMT time:   -2:28

Simon Sheppard · 06 Feb 2018 20:26

Really it would be better to extend this so that it returns both data and time, you could then treat negative times differently - subtract 1 from the date and add 24 hours, so -2:28 would then become 22:28

Pyprohly · 07 Feb 2018 06:33

The Win32_UTCTime WMI class already contains the GMT date and time, so frankly I don’t see the need for gmt.cmd?

[revoked example]

Last edited by Pyprohly (10 Feb 2018 09:32)

Shadow Thief · 08 Feb 2018 00:25

Because it wasn't available in 2006 when the topic was first created.

Simon Sheppard · 09 Feb 2018 15:46

I have now updated the page https://ss64.com/nt/syntax-gmt.html to use wmic path Win32_UTCTime

In PowerShell, this can be done with just:

$mydtm = Get-Date            
$mydtm.ToUniversalTime()

Pyprohly · 10 Feb 2018 09:31

Fair enough, Shadow Man.

Regarding the updated script, the need for that caret symbol in the FOR /F loops look questionable…

Simon Sheppard · 10 Feb 2018 12:35

Pyprohly wrote:

Fair enough, Shadow Man.

Regarding the updated script, the need for that caret symbol in the FOR /F loops look questionable…

Try it without and see what happens!

consider why this fails:

@echo off 
setlocal EnableDelayedExpansion
for /f %%G in ('echo Hi ^& set _snark=Hello') do (echo [!_snark!])


C:\batch>demo.cmd
Environment variable _snark Hello not defined
[]

The important thing here is that the variable _snark is not available in the DO clause, even with EnableDelayedExpansion, so the commands we run between the ' ' are running in a subshell, and thats why we need to escape the & and | characters if we want them to be ignored by the current shell and just passed to the subshell.

Pyprohly · 11 Feb 2018 15:47

Oh, I didn’t even notice that caret symbol because it’s in such a routine position. I’m referring to the other caret symbol, the one in the options part: “delims=^=”.

The equals symbol doesn’t need escaping and the caret symbol isn’t escaping anything there.

Simon Sheppard · 11 Feb 2018 23:22

Ah yes, good point - I'll fix that now.

Thanks

SS64 Forum

#1 07 Aug 2006 19:10

Display the current time in GMT (World Time)

#2 28 Apr 2016 17:53

Re: Display the current time in GMT (World Time)

#3 28 Apr 2016 18:32

Re: Display the current time in GMT (World Time)

#4 28 Apr 2016 23:35

Re: Display the current time in GMT (World Time)

#5 06 Feb 2018 20:26

Re: Display the current time in GMT (World Time)

#6 07 Feb 2018 06:33

Re: Display the current time in GMT (World Time)

#7 08 Feb 2018 00:25

Re: Display the current time in GMT (World Time)

#8 09 Feb 2018 15:46

Re: Display the current time in GMT (World Time)

#9 10 Feb 2018 09:31

Re: Display the current time in GMT (World Time)

#10 10 Feb 2018 12:35

Re: Display the current time in GMT (World Time)

#11 11 Feb 2018 15:47

Re: Display the current time in GMT (World Time)

#12 11 Feb 2018 23:22

Re: Display the current time in GMT (World Time)

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