1am in Coordinated Universal Time is 4:30am in Tehran.

Frequently asked

Quick answers about converting between Coordinated Universal Time and Tehran. Can't find what you need? Email [email protected].

What is the time difference between Coordinated Universal Time and Tehran?

Coordinated Universal Time is 3 hours 30 minutes behind Tehran 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 1am in Coordinated Universal Time, what time is it in Tehran?

1am in Coordinated Universal Time is 4:30am in Tehran. It lands deep outside working hours in Tehran — 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 Coordinated Universal Time and Tehran?

9am–2pm in Coordinated Universal Time lines up with 12:30pm–5:30pm in Tehran — 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 — UTC and +03:30 — 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.