Tokyo to Sun Valley Time Difference
Sun Valley is 15 hours behind Tokyo. When it is noon in Tokyo, it is 21:00 in Sun Valley.
Tokyo (UTC+9) → Boise (UTC-6)
🕐 Interactive Time Explorer
When it's 07:00 in Tokyo, it's 16:00 in Sun Valley
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Tokyo & Sun Valley◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
8,454 km
Est. Flight Time
~10.9h
Time Difference
-15h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
Tokyo
15:00
Sun Valley (-1)
09:00
Tokyo
18:00
Sun Valley (-1)
12:00
Tokyo
21:00
Sun Valley (-1)
15:00
Tokyo
00:00
Sun Valley
18:00
Tokyo
03:00
Sun Valley
21:00
Tokyo
06:00
Sun Valley
00:00
Tokyo
09:00
Sun Valley (-1)
03:00
Tokyo
12:00
Sun Valley (-1)
Frequently Asked Questions
How many hours is Tokyo ahead of Sun Valley?
Sun Valley is 15 hours behind Tokyo. When it is 12:00 noon in Tokyo, it is 21:00 in Sun Valley. Tokyo operates on Asia/Tokyo (UTC+9), while Sun Valley uses America/Boise (UTC-6).
What is the best time to call Sun Valley from Tokyo?
Standard business hours (9 AM–5 PM) do not overlap between Tokyo and Sun Valley due to the 15 hours difference. Consider early morning or late evening calls, or use async communication.
Does the Tokyo to Sun Valley 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 Sun Valley
The distance between Tokyo and Sun Valley is approximately 8,454 km. A direct flight typically takes around 10.9 hours. Your arrival clock will show local Sun Valley time — use our Flight Time Calculator to predict exact arrival times.