Time difference: Boulder vs Tokyo
Tokyo is 15 hours ahead of Boulder.
Boulder is in the MDT time zone (UTC-06:00) while Tokyo uses JST (UTC+09:00).
The offset between these two cities changes during the year because they do not share the same daylight saving schedule.
Tokyo is 15 hours ahead of Boulder.
Boulder is in the MDT time zone (UTC-06:00) while Tokyo uses JST (UTC+09:00).
Because Boulder and Tokyo do not share the same daylight saving schedule, the time difference between them changes during the year.
Hour-by-hour conversion
When it's the given hour in Boulder, here are the local times elsewhere.
| Boulder | Tokyo |
|---|---|
| 00:00 | 15:00 |
| 01:00 | 16:00 |
| 02:00 | 17:00 |
| 03:00 | 18:00 |
| 04:00 | 19:00 |
| 05:00 | 20:00 |
| 06:00 | 21:00 |
| 07:00 | 22:00 |
| 08:00 | 23:00 |
| 09:00 | 00:00 +1 |
| 10:00 | 01:00 +1 |
| 11:00 | 02:00 +1 |
| 12:00 | 03:00 +1 |
| 13:00 | 04:00 +1 |
| 14:00 | 05:00 +1 |
| 15:00 | 06:00 +1 |
| 16:00 | 07:00 +1 |
| 17:00 | 08:00 +1 |
| 18:00 | 09:00 +1 |
| 19:00 | 10:00 +1 |
| 20:00 | 11:00 +1 |
| 21:00 | 12:00 +1 |
| 22:00 | 13:00 +1 |
| 23:00 | 14:00 +1 |
Frequently Asked Questions
Tokyo is 15 hours ahead of Boulder.
There is no full overlap between 9:00 and 17:00 working hours in Boulder and Tokyo. Use the meeting planner to find the best edge-hour option.
Tokyo is 15 hours ahead of Boulder.
Boulder and Tokyo do not share the same DST schedule, so the time offset between them changes by an hour during parts of the year.
Boulder uses America/Denver and Tokyo uses Asia/Tokyo. These are the identifiers used by operating systems and APIs to compute local time.
There is no full overlap between 9:00 and 17:00 working hours in Boulder and Tokyo. Use the meeting planner to find the best edge-hour option.