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Kevin Breazile 1Kevin Breazile 1 

Does Time Zone "Greenwich Mean Time (Europe/London) use DST?

I need to know if the Time Zone Greenwich Mean Time (Europe/London) changes with Daylight Savings Time for users assigned to this Time Zone.  If this Time Zone does not, then which one would I use?

Kevin
srlawr uksrlawr uk
Good question. I can't provide specific proof, but I live and work in the UK, and our Org is set to GMT - as far as I can tell you, created dates and modified dates on records that I work with DO reflect the *actual* time - respecting changes for DST.
Kevin Breazile 1Kevin Breazile 1
Thanks Srlawr,   Are you using the time zone called  "Greenwich Mean Time (Europe/London)"?
Carmen SolisCarmen Solis
Hi, yes is changed for me, test this in the console: 
Timezone tz2 = Timezone.getTimeZone('Europe/London');
DateTime dtpost = DateTime.newInstanceGMT(2023, 11, 1, 0, 0, 0);
system.debug('dtpost: '+dtpost + ' offset: '+tz2.getOffset(dtpost));

DateTime dtpost2 = DateTime.newInstanceGMT(2023, 08, 1, 0, 0, 0);
system.debug('dtpost2: '+dtpost2 + ' offset: '+tz2.getOffset(dtpost2));

output: 
DEBUG|dtpost: 2023-11-01 00:00:00 offset: 0
DEBUG|dtpost2: 2023-08-01 00:00:00 offset: 3600000