Time difference between Riyadh and Tehran
Tehran is 30 minutes ahead of Riyadh. When it's 9:00 in Riyadh, it's 09:30 in Tehran.
Tehran is 30 minutes ahead of Riyadh.
On Tuesday, 6 October 2026, 09:00 in Riyadh is 09:30 in Tehran. Riyadh is UTC+3; Tehran is UTC+3:30.
The gap through 2026
It stays 30 minutes all year — neither city changes its clocks against the other.
Riyadh to Tehran, hour by hour
On Tuesday 6 October.
| Riyadh | Tehran |
|---|---|
| 07:00 Early morning | 07:30 Early morning |
| 08:00 Early morning | 08:30 Early morning |
| 09:00 Working hours | 09:30 Working hours |
| 10:00 Working hours | 10:30 Working hours |
| 11:00 Working hours | 11:30 Working hours |
| 12:00 Working hours | 12:30 Working hours |
| 13:00 Working hours | 13:30 Working hours |
| 14:00 Working hours | 14:30 Working hours |
| 15:00 Working hours | 15:30 Working hours |
| 16:00 Working hours | 16:30 Working hours |
| 17:00 Evening | 17:30 Evening |
| 18:00 Evening | 18:30 Evening |
| 19:00 Evening | 19:30 Evening |
| 20:00 Evening | 20:30 Evening |
| 21:00 Evening | 21:30 Evening |
| 22:00 Sleeping hours | 22:30 Sleeping hours |
Daylight saving in 2026
Neither Riyadh nor Tehran changes its clocks, so the difference is the same all year.
Best times for a call
Working hours (09:00–17:00) overlap for 7 hours 30 minutes: 09:00–16:30 in Riyadh, which is 09:30–17:00 in Tehran.
- Riyadh 09:00Working hoursTehran 09:30Working hours
- Riyadh 10:00Working hoursTehran 10:30Working hours
- Riyadh 11:00Working hoursTehran 11:30Working hours
More time differences for Riyadh and Tehran
- New York and Riyadh
- Los Angeles and Riyadh
- Chicago and Riyadh
- London and Riyadh
- Paris and Riyadh
- Berlin and Riyadh
- New York and Tehran
- Los Angeles and Tehran
- Chicago and Tehran
- London and Tehran
- Paris and Tehran
- Berlin and Tehran
- Denver and Riyadh
- Denver and Tehran
- Toronto and Riyadh
- Toronto and Tehran
- Vancouver and Riyadh
- Vancouver and Tehran
- Mexico City and Riyadh
- Mexico City and Tehran
- São Paulo and Riyadh
- São Paulo and Tehran
- Buenos Aires and Riyadh
- Buenos Aires and Tehran
- Bogotá and Riyadh
- Bogotá and Tehran
- Dublin and Riyadh
- Dublin and Tehran
- Lisbon and Riyadh
- Lisbon and Tehran
- Madrid and Riyadh
- Madrid and Tehran
How the time difference calculator works
The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.
Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.
Examples
- London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
- Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.
Good for
- Knowing when a colleague's day starts
- Setting expectations for replies across time zones
- Planning travel and jet lag
Frequently asked questions
- What time is it in Tehran when it's 9 AM in Riyadh?
- 9:30 AM — as of 6 October 2026. Tehran is 30 minutes ahead of Riyadh.
- Does the time difference between Riyadh and Tehran change?
- No. It's 30 minutes all through 2026: neither city changes its clocks.
- What's the best time for a call between Riyadh and Tehran?
- Between 09:00 and 16:30 Riyadh time, when both cities are in working hours (09:00–17:00).
- What time zones are Riyadh and Tehran in?
- Riyadh uses Asia/Riyadh (UTC+3 today); Tehran uses Asia/Tehran (UTC+3:30 today).
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See everyone's local time as you schedule
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