Tokyo to Boise Time Difference
Boise is 15 hours behind Tokyo. When it is noon in Tokyo, it is 21:00 in Boise.
Tokyo (UTC+9) → Boise (UTC-6)
🕐 Interactive Time Explorer
When it's 22:00 in Tokyo, it's 07:00 in Boise
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Tokyo & Boise◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
8,338 km
Est. Flight Time
~10.8h
Time Difference
-15h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
Tokyo
15:00
Boise (-1)
09:00
Tokyo
18:00
Boise (-1)
12:00
Tokyo
21:00
Boise (-1)
15:00
Tokyo
00:00
Boise
18:00
Tokyo
03:00
Boise
21:00
Tokyo
06:00
Boise
00:00
Tokyo
09:00
Boise (-1)
03:00
Tokyo
12:00
Boise (-1)
Frequently Asked Questions
How many hours is Tokyo ahead of Boise?
Boise is 15 hours behind Tokyo. When it is 12:00 noon in Tokyo, it is 21:00 in Boise. Tokyo operates on Asia/Tokyo (UTC+9), while Boise uses America/Boise (UTC-6).
What is the best time to call Boise from Tokyo?
Standard business hours (9 AM–5 PM) do not overlap between Tokyo and Boise due to the 15 hours difference. Consider early morning or late evening calls, or use async communication.
Does the Tokyo to Boise time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Tokyo and Boise
The distance between Tokyo and Boise is approximately 8,338 km. A direct flight typically takes around 10.8 hours. Your arrival clock will show local Boise time — use our Flight Time Calculator to predict exact arrival times.