The short answer
8am in Denver is 11pm in Japan Standard Time.
Denver is 15 hours behind Japan Standard Time. It lands deep outside working hours in Japan Standard Time — see the best time to meet below for a friendlier slot.
Denver☀
8am
Japan Standard Time☾
11pm
Right now
8:45amMDT · UTC-06:00 · Mon, Sep 21
11:45pmJST · UTC+09:00 · Mon, Sep 21
Read across to convert
Denver
MDT · UTC-06:00
Japan Standard Time
JST · UTC+09:00
Pinned8amDenver=11pmJapan Standard Time
12amMon
3pm
WORK1am
4pm
WORK2am
5pm
3am
6pm
4am
7pm
5am
8pm
6am
9pm
7am
10pm
PINNED
8am
11pm
9am
WORK12amTue ·+1d
10am
WORK1amTue ·+1d
11am
WORK2amTue ·+1d
12pm
WORK3amTue ·+1d
1pm
WORK4amTue ·+1d
2pm
WORK5amTue ·+1d
3pm
WORK6amTue ·+1d
4pm
WORK7amTue ·+1d
5pm
8amTue ·+1d
6pm
9amTue ·+1d
WORK7pm
10amTue ·+1d
WORK8pm
11amTue ·+1d
WORK9pm
12pmTue ·+1d
WORK10pm
1pmTue ·+1d
WORK11pm
2pmTue ·+1d
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Denver
4pm–7pm
Japan Standard Time
7am–10am
next day
Popular conversions
Quick reference.
9amDenver=12amJapan Standard Time · next day
12pmDenver=3amJapan Standard Time · next day
3pmDenver=6amJapan Standard Time · next day
5pmDenver=8amJapan Standard Time · next day
9pmDenver=12pmJapan Standard Time · next day
In context
What each side covers.
Denver
8:45amMDT · UTC-06:00
Cities on this clock
Japan Standard Time
11:45pmJST · UTC+09:00
Related converters
Other popular pairs.
Pacific Time
7:45am
India Standard Time
8:15pm
Pacific Time to India12 hours 30 minutes behind
Eastern Daylight Time
10:45am
Central European Time
4:45pm
Eastern Time to Central Europe6 hours behind
India Standard Time
8:15pm
Eastern Daylight Time
10:45am
India to Eastern Time9 hours 30 minutes ahead
British Summer Time
3:45pm
India Standard Time
8:15pm
London to India4 hours 30 minutes behind
Pacific Daylight Time
7:45am
Eastern Daylight Time
10:45am
Pacific to Eastern Time3 hours behind
Central European Time
4:45pm
India Standard Time
8:15pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Denver and Japan Standard Time. Can't find what you need? Email [email protected].
- What is the time difference between Denver and Japan Standard Time?
- Denver is 15 hours behind Japan Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
- When it's 8am in Denver, what time is it in Japan Standard Time?
- 8am in Denver is 11pm in Japan Standard Time. It lands deep outside working hours in Japan Standard Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
- What's the best time for a call between Denver and Japan Standard Time?
- There's no comfortable 9-to-5 overlap between Denver and Japan Standard Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — MDT and JST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
- Why is the date sometimes different on each side?
- When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.