Tokyo to Rock Springs time converter

Rock Springs is 15 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 6:00 PM (Tue, Oct 20) in Rock Springs.

Tokyo JST

Wednesday, October 21, 2026

Rock Springs MDT

Wednesday, October 21, 2026

Tokyo
Japan
Wed, Oct 21
JSTUTC+9
Rock Springs
Wyoming, United States
Wed, Oct 21
MDTUTC-6-15h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Rock Springs conversion table

Every hour of today in Tokyo and the matching time in Rock Springs. Light rows are typical working hours (9:00–18:00).

TokyoRock Springs
12:00 AM9:00 AM−1 day
1:00 AM10:00 AM−1 day
2:00 AM11:00 AM−1 day
3:00 AM12:00 PM−1 day
4:00 AM1:00 PM−1 day
5:00 AM2:00 PM−1 day
6:00 AM3:00 PM−1 day
7:00 AM4:00 PM−1 day
8:00 AM5:00 PM−1 day
9:00 AM6:00 PM−1 day
10:00 AM7:00 PM−1 day
11:00 AM8:00 PM−1 day
12:00 PM9:00 PM−1 day
1:00 PM10:00 PM−1 day
2:00 PM11:00 PM−1 day
3:00 PM12:00 AM
4:00 PM1:00 AM
5:00 PM2:00 AM
6:00 PM3:00 AM
7:00 PM4:00 AM
8:00 PM5:00 AM
9:00 PM6:00 AM
10:00 PM7:00 AM
11:00 PM8:00 AM

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Tokyo (4:00 PM – 6:00 PM in Rock Springs): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Tokyo and Rock Springs switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -15h
  • Nov 1, 2026 – Mar 14, 2027: -16h
  • Mar 14, 2027 – Oct 21, 2027: -15h

Distance

Tokyo and Rock Springs are 8,929 km (5,548 miles) apart in a straight line.

More conversions

Rock Springs to TokyoTokyo to New YorkTokyo to LondonTokyo to Los AngelesTokyo to ChicagoTokyo to TorontoTokyo to São PauloTokyo to ParisTokyo to BerlinTokyo to MoscowTokyo to DubaiTokyo to New DelhiTokyo to Bangkok
New York to Rock SpringsLondon to Rock SpringsLos Angeles to Rock SpringsChicago to Rock SpringsToronto to Rock SpringsSão Paulo to Rock SpringsParis to Rock SpringsBerlin to Rock SpringsMoscow to Rock SpringsDubai to Rock SpringsNew Delhi to Rock SpringsBangkok to Rock Springs

Questions and answers

What is the time difference between Tokyo and Rock Springs?

Rock Springs is 15 hours behind Tokyo.

What time is it in Rock Springs when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 6:00 PM (Tue, Oct 20) in Rock Springs.

When is the best time to call Rock Springs from Tokyo?

Working hours don't overlap fully. The closest fit is 7:00 AM – 9:00 AM in Tokyo (4:00 PM – 6:00 PM in Rock Springs): working hours on one side, early or late on the other.

Does the time difference between Tokyo and Rock Springs change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.