Denver to Japan - Time Zones
Japan is all in a single time zone, which is 15 hours ahead of Denver, in the Summer, during Daylight Savings Time (MDST), and 16 hours ahead during Standard Time (MST). In 2011, DST in the US will run from 13 March through 6 November, so we will be on MDST during our trip.
Japan does not use Daylight Savings Time.
Here is a handy quick reference for time mappings (red times are "next day"):
| ----- Denver ----- | Japan | |
| Daylight Savings | Standard Time | Local time |
| midnight | 11 p.m. | 03 p.m. |
| 01 a.m. | midnight | 04 p.m. |
| 02 a.m. | 01 a.m. | 05 p.m. |
| 03 a.m. | 02 a.m. | 06 p.m. |
| 04 a.m. | 03 a.m. | 07 p.m. |
| 05 a.m. | 04 a.m. | 08 p.m. |
| 06 a.m. | 05 a.m. | 09 p.m. |
| 07 a.m. | 06 a.m. | 10 p.m. |
| 08 a.m. | 07 a.m. | 11 p.m. |
| 09 a.m. | 08 a.m. | midnight |
| 10 a.m. | 09 a.m. | 01 a.m. |
| 11 a.m. | 10 a.m. | 02 a.m. |
| noon | 11 a.m. | 03 a.m. |
| 01 p.m. | noon | 04 a.m. |
| 02 p.m. | 01 p.m. | 05 a.m. |
| 03 p.m. | 02 p.m. | 06 a.m. |
| 04 p.m. | 03 p.m. | 07 a.m. |
| 05 p.m. | 04 p.m. | 08 a.m. |
| 06 p.m. | 05 p.m. | 09 a.m. |
| 07 p.m. | 06 p.m. | 10 a.m. |
| 08 p.m. | 07 p.m. | 11 a.m. |
| 09 p.m. | 08 p.m. | noon |
| 10 p.m. | 09 p.m. | 01 p.m. |
| 11 p.m. | 10 p.m. | 02 p.m. |
You might find this page of current time in many cities useful or interesting.