What time is it in Cairo when it's 9 AM in Tehran?

8:30 AM — as of 3 October 2026. Cairo is 30 minutes behind Tehran.

Does the time difference between Tehran and Cairo change?

Yes. In 2026 it's 1 hour 30 minutes or 30 minutes, depending on the date, because only Cairo changes its clocks.

What's the best time for a call between Tehran and Cairo?

Between 09:30 and 17:00 Tehran time, when both cities are in working hours (09:00–17:00).

What time zones are Tehran and Cairo in?

Tehran uses Asia/Tehran (UTC+3:30 today); Cairo uses Africa/Cairo (UTC+3 today).

Time difference between Tehran and Cairo

Cairo is 30 minutes behind Tehran. When it's 9:00 in Tehran, it's 08:30 in Cairo.

From

Cairo is 30 minutes behind Tehran.

On Saturday, 3 October 2026, 09:00 in Tehran is 08:30 in Cairo. Tehran is UTC+3:30; Cairo is UTC+3.

The gap through 2026

1 Jan – 23 AprCairo is 1 hour 30 minutes behind Tehran.
23 Apr – 29 OctCairo is 30 minutes behind Tehran.
29 Oct – 31 DecCairo is 1 hour 30 minutes behind Tehran.

Cairo moves its clocks forward on 23 April (UTC+2 → UTC+3).
Cairo moves its clocks back on 29 October (UTC+3 → UTC+2).

Tehran to Cairo, hour by hour

On Sunday 4 October.

Tehran	Cairo
07:00 Early morning	06:30 Sleeping hours
08:00 Early morning	07:30 Early morning
09:00 Working hours	08:30 Early morning
10:00 Working hours	09:30 Working hours
11:00 Working hours	10:30 Working hours
12:00 Working hours	11:30 Working hours
13:00 Working hours	12:30 Working hours
14:00 Working hours	13:30 Working hours
15:00 Working hours	14:30 Working hours
16:00 Working hours	15:30 Working hours
17:00 Evening	16:30 Working hours
18:00 Evening	17:30 Evening
19:00 Evening	18:30 Evening
20:00 Evening	19:30 Evening
21:00 Evening	20:30 Evening
22:00 Sleeping hours	21:30 Evening

Daylight saving in 2026

Cairo moves its clocks forward on Thursday 23 April (UTC+2 → UTC+3).
Cairo moves its clocks back on Thursday 29 October (UTC+3 → UTC+2).

1 Jan – 23 AprCairo is 1 hour 30 minutes behind Tehran.
23 Apr – 29 OctCairo is 30 minutes behind Tehran.
29 Oct – 31 DecCairo is 1 hour 30 minutes behind Tehran.

Best times for a call

Working hours (09:00–17:00) overlap for 7 hours 30 minutes: 09:30–17:00 in Tehran, which is 09:00–16:30 in Cairo.

Tehran 09:30Working hoursCairo 09:00Working hours
Tehran 10:30Working hoursCairo 10:00Working hours
Tehran 11:30Working hoursCairo 11:00Working hours

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 Cairo when it's 9 AM in Tehran?: 8:30 AM — as of 3 October 2026. Cairo is 30 minutes behind Tehran.
Does the time difference between Tehran and Cairo change?: Yes. In 2026 it's 1 hour 30 minutes or 30 minutes, depending on the date, because only Cairo changes its clocks.
What's the best time for a call between Tehran and Cairo?: Between 09:30 and 17:00 Tehran time, when both cities are in working hours (09:00–17:00).
What time zones are Tehran and Cairo in?: Tehran uses Asia/Tehran (UTC+3:30 today); Cairo uses Africa/Cairo (UTC+3 today).

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