using tzdb to get the gmt offset.

[JIMSMITH 0]

Has anybody here used the tzdb project to retrieve the gmt offset as in gmt -6 etc.  as in gmt -X for America/Havana or any other example that you can think of?  FYI tzdb is located at Code Examples · pavkam/tzdb Wiki · GitHub

 

Edited November 22 by JIMSMITH

[Der schöne Günther 316]

It's specific to Windows, but I am just reading the registry from HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones for all the timezones and offsets.

[Anders Melander 1815]

1 hour ago, Der schöne Günther said:

I am just reading the registry from HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones for all the timezones and offsets.

...or the slightly less hacky method: EnumDynamicTimeZoneInformation and friends.

[Der schöne Günther 316]

Thanks, I didn't know that. I still have to support Windows 7, so I can't use it.

 

Still, good to know.