Offset
The time difference between Iran Standard Time and Israel Time is 0.5 hours.
Iran Standard Time (IRST) is ahead of Israel Time (IDT).
IRST: UTC+3:30
IDT: UTC+3
Israel Time is currently observing daylight saving time; Iran Standard Time is not.
When to schedule
Business-hours overlap: 10 AM–5 PM in Iran Standard Time (9 AM–4 PM in Israel Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 1:00 PM Iran Standard Time (12:30 PM Israel Time).
This window may shift by an hour during daylight saving time.
Note: the working week in Israel runs Sunday–Thursday; Friday–Saturday is the weekend, so overlap on those days is limited.
About these zones
Iran Standard Time is also known as IRST. To call Iran, dial +98.
Israel Time is also known as IST, or IDT. To call Israel, dial +972.
Israel Time is approximately 975 miles west of Iran Standard Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| IRST | IST-ISRAEL | Day |
|---|---|---|
| 12:00 am | 11:30 pm | -1 day |
| 1:00 am | 12:30 am | Same day |
| 2:00 am | 1:30 am | Same day |
| 3:00 am | 2:30 am | Same day |
| 4:00 am | 3:30 am | Same day |
| 5:00 am | 4:30 am | Same day |
| 6:00 am | 5:30 am | Same day |
| 7:00 am | 6:30 am | Same day |
| 8:00 am | 7:30 am | Same day |
| 9:00 am | 8:30 am | Same day |
| 10:00 am | 9:30 am | Same day |
| 11:00 am | 10:30 am | Same day |
| 12:00 pm | 11:30 am | Same day |
| 1:00 pm | 12:30 pm | Same day |
| 2:00 pm | 1:30 pm | Same day |
| 3:00 pm | 2:30 pm | Same day |
| 4:00 pm | 3:30 pm | Same day |
| 5:00 pm | 4:30 pm | Same day |
| 6:00 pm | 5:30 pm | Same day |
| 7:00 pm | 6:30 pm | Same day |
| 8:00 pm | 7:30 pm | Same day |
| 9:00 pm | 8:30 pm | Same day |
| 10:00 pm | 9:30 pm | Same day |
| 11:00 pm | 10:30 pm | Same day |
Daylight saving time
Israel Time observes daylight saving time; Iran Standard Time does not. The offset between the two zones changes when Israel Time transitions: on Sunday, October 25, 2026, clocks fall back from IDT to IST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 4:50 AM
- Sunset
- 7:18 PM
- Day length
- 14h 28m
- Sunrise
- 5:35 AM
- Sunset
- 7:42 PM
- Day length
- 14h 8m
Daylight overlap: 13h 13m — 6:05 AM–7:18 PM in Iran Standard Time (5:35 AM–6:48 PM in Israel Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Israel Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Iran Standard Time
- IKA
- THR
- MHD
- IFN
- PYK
- TBZ
Airports in Israel Time
- TLV
Related conversions
Common conversions
- What is 9:00 am IRST in IST-ISRAEL?
- 9:00 am IRST is 8:30 am IST-ISRAEL.
- What is 12:00 pm IRST in IST-ISRAEL?
- 12:00 pm IRST is 11:30 am IST-ISRAEL.
- What is 12:30 pm IRST in IST-ISRAEL?
- 12:30 pm IRST is 12:00 pm IST-ISRAEL.
- What is 2:00 pm IRST in IST-ISRAEL?
- 2:00 pm IRST is 1:30 pm IST-ISRAEL.
- What is 5:00 pm IRST in IST-ISRAEL?
- 5:00 pm IRST is 4:30 pm IST-ISRAEL.
- What is 11:30 pm IRST in IST-ISRAEL?
- 11:30 pm IRST is 11:00 pm IST-ISRAEL.