Does this converter handle daylight saving time?

Yes. The offset between Tokyo and Denver can change across the year as either zone enters or leaves DST. Pick any date in the converter and the exact offset for that date is used.

🇯🇵 Tokyo to Denver 🇺🇸 time converter

Convert any time from Tokyo (JST) to Denver (MT (MST/MDT)), with daylight saving handled correctly for the date you choose.

Denver is currently 15 hours behind Tokyo.

Tokyo: Sun, Jun 21, 2026, 3:29 AM UTC+09:00 (GMT+9) · Denver: Sat, Jun 20, 2026, 12:29 PM UTC-06:00 (MDT)

Tokyo 00h → 23hblue/green = 9am–6pm working hoursDenver local hour

Convert Tokyo to Denver on any date

From zone

To zone

Date & time (in “from” zone)

Get this conversion as JSON (developer API)

curl "https://tz.wrapper-agency.com/api/v1/tz?from=Asia%2FTokyo&to=America%2FDenver&time=2008-11-04T09%3A00"

Free timezone API — no key during beta. DST-correct, IANA tz database.

Current offsets

🇯🇵 Tokyo	UTC+09:00
🇺🇸 Denver	UTC-06:00
Difference	−15h

FAQ

What time is it in Denver when it's noon in Tokyo?: Use the converter above — enter 12:00 on your date in Tokyo and you'll get the exact Denver local time, DST included.
Why does the time difference change during the year?: Tokyo and Denver may observe daylight saving on different schedules (or not at all), so the gap between them shifts on clock-change dates.