Server Time here is so stupid, it makes things hard for some parties. When they say 7pm ST, but your ST and there ST is totally different, I usually ask the people what is your current time and server time. Then I work it out after that for the party start time etc.

This has been a thing since ARR released and even earlier. Best to not look at ST at all, and work with local times and use world-clock on the internet to work out the times of others if you are using it for raid times etc.