2am in French Southern & Antarctic Time is 10pm in Greenwich Mean Time on the previous day.

Frequently asked

Quick answers about converting between French Southern & Antarctic Time and Greenwich Mean Time. Can't find what you need? Email [email protected].

What is the time difference between French Southern & Antarctic Time and Greenwich Mean Time?

French Southern & Antarctic Time is 4 hours ahead of Greenwich Mean Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.

When it's 2am in French Southern & Antarctic Time, what time is it in Greenwich Mean Time?

2am in French Southern & Antarctic Time is 10pm in Greenwich Mean Time on the previous day. It lands deep outside working hours in Greenwich Mean Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.

What's the best time for a call between French Southern & Antarctic Time and Greenwich Mean Time?

1pm–5pm in French Southern & Antarctic Time lines up with 9am–1pm in Greenwich Mean Time — both sides are inside a 9-to-5 working day.

Does this account for daylight saving time?

Yes. We track every clock change in both places, so the abbreviations you see — +05:00 and BST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.

Why is the date sometimes different on each side?

When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.