Convert Time: Tehran to Houston
Tehran is 8.5 hours behind Houston. Convert any time between these two cities instantly.
Quick conversion table
| When it's Tehran time | It's also Houston time |
|---|---|
| 00:00 | 15.5:00 |
| 02:00 | 17.5:00 |
| 04:00 | 19.5:00 |
| 06:00 | 21.5:00 |
| 08:00 | 23.5:00 |
| 09:00 | 0.5:00 |
| 10:00 | 1.5:00 |
| 12:00 | 3.5:00 |
| 14:00 | 5.5:00 |
| 16:00 | 7.5:00 |
| 18:00 | 9.5:00 |
| 20:00 | 11.5:00 |
| 22:00 | 13.5:00 |
Times shown for standard time. During daylight saving transitions the offset may temporarily differ by ±1 hour.
Best times to convert between Tehran and Houston
Whether you're scheduling a call, planning travel, or coordinating a remote meeting between Tehran (Iran) and Houston (USA), the core conversion rule is simple: Tehran is 8.5 hours behind Houston. So when it's 12:00 in Tehran, it is 3.5:00 in Houston.
Practical overlap
With a 8.5-hour gap, there is little to no standard working-hour overlap between Tehran and Houston. Most teams rely on early-morning or late-evening calls for synchronous work, or shift to async communication (Slack, Loom, email) for the rest.
Common conversion questions
If it's 9:00 AM in Tehran, what time is it in Houston?
9:00 AM in Tehran is 0.5:00 in Houston (behind).
What about 5:00 PM in Tehran?
5:00 PM in Tehran is 8.5:00 in Houston.
What about midnight in Tehran?
Midnight in Tehran is 15.5:00 in Houston. This is often the trickiest conversion for late-night calls.
See the exact time conversion in our interactive Time Difference tool
Live clocks for both cities, business-hour overlap visualization, and shareable meeting links.
Open Full Converter