Hanoi ↔ Ulaanbaatar
Best Time to Call
Excellent overlap! The best window to call is between 9:00 and 16:00 (Hanoi time).
Sync Hanoi and Ulaanbaatar easily. Hanoi is 1 hour behind Ulaanbaatar. Excellent overlap! The best window to call is between 9:00 and 16:00 (Hanoi time).
Upcoming Time Change
- New York City clocks forward 1h in 11 days Mar 09
💡 Review recurring meetings scheduled during these dates to avoid sync issues.
Meeting Optimizer
Sync Score
3.3/10
-12h Current Time +12h
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Tokyo
15:36 GMT+9
Working
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New York City
01:36 EST
Sleeping
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London
06:36 GMT
Sleeping
Synchronization Context
With only a 1 hour difference, these cities share a near-total workday overlap. Coordination is seamless, with most business hours aligning perfectly.
Hanoi Business Pulse
- Culture Formal, hierarchical, and relationship-driven. Government presence is strong.
- Lunch Break 12:00 PM - 1:30 PM.
- Pro Tip Best reached between 9:00 AM and 11:30 AM. Business in the capital is more formal and hierarchical than in the south. Relationships with authority and government are often important. Trust must be built through multiple polite interactions and formal introductions.
Ulaanbaatar Business Pulse
- Culture Resilient, pragmatic, and values relationship building. Influenced by its unique history and climate.
- Lunch Break 1:00 PM - 2:00 PM.
- Pro Tip Reach out between 10:00 AM and 12:00 PM. Mongolian business culture is relational; personal trust must be built through multiple interactions. Be direct but also patient and polite. Personal presence is highly valued. In winter, be mindful that local schedules may be slightly affected by extreme cold.
Quick Comparison
| Feature | Hanoi | Ulaanbaatar |
|---|---|---|
| Timezone | Asia/Bangkok | Asia/Ulaanbaatar |
| Country | Vietnam | Mongolia |
| Coordinates | 21.03, 105.85 | 47.89, 106.91 |
| Population | 5,200,000 | 1,377,308 |