Does Denver observe daylight saving time?

Yes. Denver is on MDT (UTC-6) now, and its clocks go back 1 hour on Sun, Nov 1, to MST (UTC-7).

Does Tokyo observe daylight saving time?

No. Tokyo stays on JST (UTC+9) all year, so its clocks don't change.

What time is it in Tokyo when it's 9 AM in Denver?

12:00 AM in Tokyo, the next day (Sun, Oct 18, when it's Sat, Oct 17 in Denver).

Denver to Tokyo Meeting Planner

Tokyo is 15 hours ahead of Denver right now. Their working days don't overlap today.

Denver · United States

2:03 PM

Sat, Oct 17 · MDT · summer time

Tokyo · Japan

5:03 AM

Sun, Oct 18 · JST

Best Meeting Times Between Denver and Tokyo

No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 4:00 PM in Denver, which is 7:00 AM in Tokyo; consider splitting into two shorter meetings or shifting someone's hours.

Who's meeting

2 of 4 places

DenverOrganizerUnited States ·· summer time2:03PMnow
TokyoJapan ·5:03AMTomorrow · now

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in Denver

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in Denver time.

4:00PMBest · GoodWorking hours in Denver (16:00); just outside working hours in Tokyo (07:00, next day).
6:00PMOption 2 · GoodWorking hours in Tokyo (09:00, next day); just outside working hours in Denver (18:00).
7:00PMOption 3 · GoodWorking hours in Tokyo (10:00, next day); just outside working hours in Denver (19:00).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
DenverMDT
TokyoUTC+9
UTC	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

Denver4:00 PM MDTSat, Oct 17
Tokyo7:00 AM UTC+9Sun, Oct 18
UTC2026-10-17 22:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Denver and Tokyo

Tokyo is 15 hours ahead of Denver right now: Tokyo is on JST (UTC+9) and Denver on MDT (UTC-6). That changes on Sun, Nov 1, when clocks go back in Denver: then Tokyo is 16 hours ahead of Denver.

Time difference between Denver and Tokyo over the next 12 months
From	Difference	Why
Now	Tokyo 15 hours ahead	—
Sun, Nov 1	Tokyo 16 hours ahead	Clocks go back in Denver
Sun, Mar 14, 2027	Tokyo 15 hours ahead	Clocks go forward in Denver

Denver is on Mountain Standard Time. Tokyo is on Japan Standard Time.

Frequently Asked Questions: Denver & Tokyo Scheduling

What is the time difference between Denver and Tokyo?: Tokyo is 15 hours ahead of Denver right now: Tokyo is on JST (UTC+9) and Denver on MDT (UTC-6). That changes on Sun, Nov 1, when clocks go back in Denver: then Tokyo is 16 hours ahead of Denver.
What is the best time to schedule a meeting between Denver and Tokyo?: No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 4:00 PM in Denver, which is 7:00 AM in Tokyo; consider splitting into two shorter meetings or shifting someone's hours.
Does Denver observe daylight saving time?: Yes. Denver is on MDT (UTC-6) now, and its clocks go back 1 hour on Sun, Nov 1, to MST (UTC-7).
Does Tokyo observe daylight saving time?: No. Tokyo stays on JST (UTC+9) all year, so its clocks don't change.
What time is it in Tokyo when it's 9 AM in Denver?: 12:00 AM in Tokyo, the next day (Sun, Oct 18, when it's Sat, Oct 17 in Denver).

Or see every city pair, or plan with more places in the meeting planner.