Tehran to Moscow Time
IRST to MSK Converter — 9 AM IRST is 8:30 AM MSK
Tehran is 0 hours and 30 minutes ahead of Moscow. Convert any time between Tehran (IRST/IRDT) and Moscow (MSK) instantly.
Tehran
Iran
Moscow
Russia
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Time Zone Comparison
Tehran to Moscow Time Conversion Table
| Tehran (IRST) | Moscow (MSK) |
|---|---|
| 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 & Moscow — Business & Scheduling Guide
Tehran (Iran) is an important regional economy, with key industries in diverse sectors including services and trade. Moscow (Russia) 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 Moscow
With only a 0.5-hour gap, Tehran and Moscow 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 Moscow does not — it stays on MSK year-round. This means the time difference between Tehran and Moscow 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 MSK — Quick Reference
IRST (IRST/IRDT) stands for the timezone used in Tehran, Iran (UTC+3:30). MSK (MSK) is the timezone used in Moscow, Russia (UTC+3). Tehran is 0 hours and 30 minutes ahead of Moscow.
To convert IRST to MSK, subtract 0.5 hours from IRST time. For example, IRST 9:00 AM = MSK 8:30 AM.
Key Facts
- •Time difference: Tehran (UTC+3:30) is 0 hours and 30 minutes ahead of Moscow (UTC+3).
- •Daylight Saving Time: Tehran observes DST (IRST/IRDT). Moscow does not observe DST (MSK).
- •Regions: Tehran is located in Iran and uses the IRST/IRDT time zone. Moscow is located in Russia and uses the MSK time zone.
- •Best time to call: The best time to call between Tehran and Moscow 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 Moscow?
Tehran is 0 hours and 30 minutes ahead of Moscow.
What time is it in Moscow when it's 9 AM in Tehran?
When it's 9:00 AM in Tehran, it is 8:30 AM in Moscow.
What time is 9 PM IRST in MSK?
9 PM IRST (Tehran time) is 8:30 PM MSK (Moscow 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 Moscow?
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 MSK?
IRST (IRST/IRDT) is the timezone for Tehran, Iran (UTC+3:30). MSK (MSK) is the timezone for Moscow, Russia (UTC+3). Tehran is 0 hours and 30 minutes ahead of Moscow. Quick examples: 9 AM IRST = 8:30 AM MSK, 12 PM IRST = 11:30 AM MSK, 3 PM IRST = 2:30 PM MSK, 6 PM IRST = 5:30 PM MSK.
Is Tehran ahead of or behind Moscow?
Tehran is 30 minutes ahead of Moscow. When it's noon in Tehran, it's 11:30 AM in Moscow.
Does Tehran or Moscow change clocks for Daylight Saving Time?
Yes, Tehran observes DST and switches between IRST/IRDT. Moscow does not observe DST — it stays on MSK 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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