Time Difference between Boulder and Tokyo
Denver (UTC-6) → Tokyo (UTC+9)
🕐 Interactive Time Explorer
When it's 13:00 in Boulder, it's 04:00 in Tokyo
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Boulder & Tokyo◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
9,294 km
Est. Flight Time
~11.9h
Time Difference
+15h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
Boulder
21:00
Tokyo
09:00
Boulder
00:00
Tokyo (+1)
12:00
Boulder
03:00
Tokyo (+1)
15:00
Boulder
06:00
Tokyo (+1)
18:00
Boulder
09:00
Tokyo (+1)
21:00
Boulder
12:00
Tokyo (+1)
00:00
Boulder
15:00
Tokyo
03:00
Boulder
18:00
Tokyo
❓ Frequently Asked Questions
Time Difference Between Boulder and Tokyo
Boulder, United States and Tokyo, Japan are separated by a time difference of 15 hours. When it's noon in Boulder, it's 15 hours later in Tokyo.
Boulder operates on America/Denver timezone, while Tokyo uses Asia/Tokyo. Both cities may observe Daylight Saving Time at different dates, which can temporarily change the time difference by an hour.
Best Time to Call
Due to the 15 hours difference, finding overlapping business hours can be challenging.
Flight Considerations
The distance between Boulder and Tokyo is approximately 9,294 km. A direct flight typically takes around 11.9 hours. When traveling, remember that your arrival time will be in local time. Use our Flight Time Calculator for accurate arrival predictions.