Tokyo to Boulder City time converter
Boulder City is 16 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 5:00 PM (Sun, Oct 18) in Boulder City.
Tokyo JST
Monday, October 19, 2026
Boulder City PDT
Monday, October 19, 2026
8:23 PM in Tokyo, Monday, October 19, 2026
Tokyo to Boulder City conversion table
Every hour of today in Tokyo and the matching time in Boulder City. Light rows are typical working hours (9:00–18:00).
| Tokyo | Boulder City |
|---|---|
| 12:00 AM | 8:00 AM−1 day |
| 1:00 AM | 9:00 AM−1 day |
| 2:00 AM | 10:00 AM−1 day |
| 3:00 AM | 11:00 AM−1 day |
| 4:00 AM | 12:00 PM−1 day |
| 5:00 AM | 1:00 PM−1 day |
| 6:00 AM | 2:00 PM−1 day |
| 7:00 AM | 3:00 PM−1 day |
| 8:00 AM | 4:00 PM−1 day |
| 9:00 AM | 5:00 PM−1 day |
| 10:00 AM | 6:00 PM−1 day |
| 11:00 AM | 7:00 PM−1 day |
| 12:00 PM | 8:00 PM−1 day |
| 1:00 PM | 9:00 PM−1 day |
| 2:00 PM | 10:00 PM−1 day |
| 3:00 PM | 11:00 PM−1 day |
| 4:00 PM | 12:00 AM |
| 5:00 PM | 1:00 AM |
| 6:00 PM | 2:00 AM |
| 7:00 PM | 3:00 AM |
| 8:00 PM | 4:00 AM |
| 9:00 PM | 5:00 AM |
| 10:00 PM | 6:00 AM |
| 11:00 PM | 7:00 AM |
Best time to call or meet
Both sides are at work from 9:00 AM – 10:00 AM in Tokyo (5:00 PM – 6:00 PM in Boulder City).
Daylight saving time and the difference
The difference changes during the year because Tokyo and Boulder City switch clocks on different dates:
- Oct 19, 2026 – Nov 1, 2026: -16h
- Nov 1, 2026 – Mar 14, 2027: -17h
- Mar 14, 2027 – Oct 19, 2027: -16h
Distance
Tokyo and Boulder City are 8,936 km (5,553 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Tokyo and Boulder City?
Boulder City is 16 hours behind Tokyo.
What time is it in Boulder City when it is 9 AM in Tokyo?
When it is 9:00 AM in Tokyo, it is 5:00 PM (Sun, Oct 18) in Boulder City.
When is the best time to call Boulder City from Tokyo?
Both sides are at work from 9:00 AM – 10:00 AM in Tokyo (5:00 PM – 6:00 PM in Boulder City).
Does the time difference between Tokyo and Boulder City change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.