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Getting Gmt (greenwich Mean Time)


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I'm working on a clock script and I'm almost done. The clock has to be in GMT, since my clock is PST that's an -8 hour timezone offset. Sure I can just add 8 hours to my script but I wouldn't be a very good script writer if I would lol.

How can I make the script detect the timezone offset? If I can make it do that, then it can just subtract it from the @Hour macro to get the GMT. I was thinking the registry but no luck with that, found the options but not the timezone currently selected.

Edited by ravenfyre
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reg is held I think in:

My Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\TimeZoneInformation

This will give you the current timezone, and if you want to cross referance with the keys in:

My Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones

that should get you started. Or you could get a net time.

AutoIt3, the MACGYVER Pocket Knife for computers.

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Hmm guess that would work but it's not really an easy fix since the key list is so long, unless I could actually search the keys My Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones for the current timezone. No registry search function, guess it's time to write my own :whistle:. Still before I get cracking on this, are there any other ways to get the current timezone?

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Some OS's set an environment variable TZ with the time zone information.

PST8PDT The default is PST (Pacific Standard Time), which is 8 hours after GMT (If it is 12 noon in PST, it is 8 pm UCT). Daylight savings is known as PDT, which is one hour ahead.

CST7 Saskatchuwan - The default is CST (Central Standard Time), which is 7 hours after GMT. There is no daylight savings time.

Does that help?

Edited by Nutster

David Nuttall
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Sorry I thought you would figure it out, but here is the WinXp,2000,NT version:

$x=RegRead ( "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\TimeZoneInformation","StandardName")
$GMT=RegRead ( "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\"&$x,"Display")
$GMT2=StringMid($gmt,5,3)
msgbox(1,"Timezone="&$x, "GMT="&$GMT & @crlf & $gmt2 &" Hour adj")

AutoIt3, the MACGYVER Pocket Knife for computers.

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Sorry I thought you would figure it out, but here is the WinXp,2000,NT version:

$x=RegRead ( "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\TimeZoneInformation","StandardName")
$GMT=RegRead ( "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\"&$x,"Display")
$GMT2=StringMid($gmt,5,3)
msgbox(1,"Timezone="&$x, "GMT="&$GMT & @crlf & $gmt2 &" Hour adj")
Impressive, I would have never figured it out using this method :whistle: . Never knew about stringmid, will come in handy next time I'll tinker with the registry. Thanks scriptkitty. Edited by ravenfyre
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