Hanoi ↔ Philadelphia
Best Time to Call
These cities have challenging overlap; use our slider to find a slot.
Sync Hanoi and Philadelphia easily. Hanoi is 12 hours ahead of Philadelphia. These cities have challenging overlap; use our slider to find a slot.
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
15:45 GMT+9
Working
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New York City
01:45 EST
Sleeping
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London
06:45 GMT
Sleeping
Synchronization Context
Operating on opposite sides of the clock, these cities have virtually no overlapping business hours. Expect a 24-hour turnaround for most communications.
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.
Philadelphia Business Pulse
- Culture Hardworking, direct, and values heritage and education.
- Lunch Break 12:00 PM - 1:00 PM.
- Pro Tip Reach out between 9:00 AM and 11:30 AM. Philadelphians are known for being direct and hardworking. The city is a major hub for healthcare, biotech, and research; technical expertise and clear, data-backed arguments are highly valued in professional discussions.
Quick Comparison
| Feature | Hanoi | Philadelphia |
|---|---|---|
| Timezone | Asia/Bangkok | America/New_York |
| Country | Vietnam | USA |
| Coordinates | 21.03, 105.85 | 39.95, -75.17 |
| Population | 5,200,000 | 5,800,000 |