Tehran to Doha Time
IRST to AST Converter — 9 AM IRST is 8:30 AM AST
Tehran is 0 hours and 30 minutes ahead of Doha. Convert any time between Tehran (IRST/IRDT) and Doha (AST) instantly.
Tehran
Iran
Doha
Qatar
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Time Zone Comparison
Tehran to Doha Time Conversion Table
| Tehran (IRST) | Doha (AST) |
|---|---|
| 12:00 AM | 11:30 PM |
| 2:00 AM | 1:30 AM |
| 4:00 AM | 3:30 AM |
| 6:00 AM | 5:30 AM |
| 8:00 AM | 7:30 AM |
| 10:00 AM | 9:30 AM |
| 12:00 PM | 11:30 AM |
| 2:00 PM | 1:30 PM |
| 4:00 PM | 3:30 PM |
| 6:00 PM | 5:30 PM |
| 8:00 PM | 7:30 PM |
| 10:00 PM | 9:30 PM |
Tehran & Doha — Business & Scheduling Guide
Tehran (Iran) is an important regional economy, with key industries in diverse sectors including services and trade. Doha (Qatar) is an important regional economy, known for diverse sectors including services and trade. With a 0.5-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between Tehran and Doha
With only a 0.5-hour gap, Tehran and Doha have generous overlapping work hours. Morning calls in the earlier time zone align well with mid-day in the other. Business hours typically follow a 9 AM–5 PM schedule. Business hours typically follow a 9 AM–5 PM schedule. Most teams find that late morning to early afternoon offers the widest window for collaboration.
Daylight Saving Time Considerations
Tehran observes Daylight Saving Time (IRST/IRDT), but Doha does not — it stays on AST year-round. This means the time difference between Tehran and Doha changes by 1 hour when Tehran switches clocks. During Iran's summer, the gap is 0.5–1.5 hours instead of the standard 0.5 hours. Mark DST transition dates on your calendar to avoid missed meetings.
IRST to AST — Quick Reference
IRST (IRST/IRDT) stands for the timezone used in Tehran, Iran (UTC+3:30). AST (AST) is the timezone used in Doha, Qatar (UTC+3). Tehran is 0 hours and 30 minutes ahead of Doha.
To convert IRST to AST, subtract 0.5 hours from IRST time. For example, IRST 9:00 AM = AST 8:30 AM.
Key Facts
- •Time difference: Tehran (UTC+3:30) is 0 hours and 30 minutes ahead of Doha (UTC+3).
- •Daylight Saving Time: Tehran observes DST (IRST/IRDT). Doha does not observe DST (AST).
- •Regions: Tehran is located in Iran and uses the IRST/IRDT time zone. Doha is located in Qatar and uses the AST time zone.
- •Best time to call: The best time to call between Tehran and Doha is 10:00 AM to 4:00 PM in Tehran time, when both cities have overlapping standard working hours.
Frequently Asked Questions
What is the time difference between Tehran and Doha?
Tehran is 0 hours and 30 minutes ahead of Doha.
What time is it in Doha when it's 9 AM in Tehran?
When it's 9:00 AM in Tehran, it is 8:30 AM in Doha.
What time is 9 PM IRST in AST?
9 PM IRST (Tehran time) is 8:30 PM AST (Doha time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between Tehran and Doha?
The best time to schedule a meeting is between 10:00 AM to 4:00 PM in Tehran time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.
How do I convert IRST to AST?
IRST (IRST/IRDT) is the timezone for Tehran, Iran (UTC+3:30). AST (AST) is the timezone for Doha, Qatar (UTC+3). Tehran is 0 hours and 30 minutes ahead of Doha. Quick examples: 9 AM IRST = 8:30 AM AST, 12 PM IRST = 11:30 AM AST, 3 PM IRST = 2:30 PM AST, 6 PM IRST = 5:30 PM AST.
Is Tehran ahead of or behind Doha?
Tehran is 30 minutes ahead of Doha. When it's noon in Tehran, it's 11:30 AM in Doha.
Does Tehran or Doha change clocks for Daylight Saving Time?
Yes, Tehran observes DST and switches between IRST/IRDT. Doha does not observe DST — it stays on AST year-round. Because only one city observes DST, the time difference shifts by 1 hour during transition periods (typically March/April and October/November).
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