Time Zone Converter

[ShoHashi]

Don't know what GMT is compared to your own time?

Find out and be prepared for your next MP session.

Time Zone Converter

[Ben Zwycky]

The greenwich meantime site is also very useful, as it automatically tells you what your time zone is relative to GMT (including daylight saving time, and informs you when that changes), so you don't have to go looking it up somewhere else.