Tokyo to Potomac time converter

Potomac is 13 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 8:00 PM (Sat, Oct 17) in Potomac.

Tokyo JST

Sunday, October 18, 2026

Potomac EDT

Sunday, October 18, 2026

Tokyo
Japan
Sun, Oct 18
JSTUTC+9
Potomac
Maryland, United States
Sun, Oct 18
EDTUTC-4-13h
Finding your time zone…
Shared working hours (9:00–18:00)

Tokyo to Potomac conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Tokyo (8:00 PM – 10:00 PM in Potomac): 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 Potomac switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: -13h
  • Nov 1, 2026 – Mar 14, 2027: -14h
  • Mar 14, 2027 – Oct 18, 2027: -13h

Distance

Tokyo and Potomac are 10,885 km (6,764 miles) apart in a straight line.

More conversions

Potomac 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 PotomacLondon to PotomacLos Angeles to PotomacChicago to PotomacToronto to PotomacSão Paulo to PotomacParis to PotomacBerlin to PotomacMoscow to PotomacDubai to PotomacNew Delhi to PotomacBangkok to Potomac

Questions and answers

What is the time difference between Tokyo and Potomac?

Potomac is 13 hours behind Tokyo.

What time is it in Potomac when it is 9 AM in Tokyo?

When it is 9:00 AM in Tokyo, it is 8:00 PM (Sat, Oct 17) in Potomac.

When is the best time to call Potomac from Tokyo?

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Tokyo (8:00 PM – 10:00 PM in Potomac): working hours on one side, early or late on the other.

Does the time difference between Tokyo and Potomac change?

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