Tokyo to Rapid City time converter

Rapid City is 15 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 6:00 PM (Mon, Oct 19) in Rapid City.

Tokyo JST

Tuesday, October 20, 2026

Rapid City MDT

Monday, October 19, 2026

Tokyo
Japan
Tue, Oct 20
JSTUTC+9
Rapid City
South Dakota, United States
Mon, Oct 19
MDTUTC-6-15h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Rapid City conversion table

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

TokyoRapid City
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 Rapid City): 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 Rapid City switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: -15h
  • Nov 1, 2026 – Mar 14, 2027: -16h
  • Mar 14, 2027 – Oct 20, 2027: -15h

Distance

Tokyo and Rapid City are 9,111 km (5,661 miles) apart in a straight line.

More conversions

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New York to Rapid CityLondon to Rapid CityLos Angeles to Rapid CityChicago to Rapid CityToronto to Rapid CitySão Paulo to Rapid CityParis to Rapid CityBerlin to Rapid CityMoscow to Rapid CityDubai to Rapid CityNew Delhi to Rapid CityBangkok to Rapid City

Questions and answers

What is the time difference between Tokyo and Rapid City?

Rapid City is 15 hours behind Tokyo.

What time is it in Rapid City when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 6:00 PM (Mon, Oct 19) in Rapid City.

When is the best time to call Rapid City 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 Rapid City): working hours on one side, early or late on the other.

Does the time difference between Tokyo and Rapid City change?

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