4am in Alaska Time is 9am in Atlantic Standard Time.

Frequently asked

Quick answers about converting between Alaska Time and Atlantic Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Alaska Time and Atlantic Standard Time?

Alaska Time is 5 hours behind Atlantic Standard 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 4am in Alaska Time, what time is it in Atlantic Standard Time?

4am in Alaska Time is 9am in Atlantic Standard Time. It falls outside the 9-to-5 in Alaska Time but lands inside working hours in Atlantic Standard Time. Use the hour-by-hour table above to read any other time across.

What's the best time for a call between Alaska Time and Atlantic Standard Time?

9am–12pm in Alaska Time lines up with 2pm–5pm in Atlantic Standard 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 — AKDT and ADT — 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.