Japan
JST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
HST
Hawaii Standard Time
GMT -10
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare Okinawa time with HST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

JST (Japan Standard Time) is 19 hours ahead of Hawaii Standard Time
9:00 pm21:00 in Okinawa, Japan is 2:00 am02:00 in HST

Okinawa to HST call time
Best time for a conference call or a meeting is between 9am-12pm in Okinawa which corresponds to 2pm-5pm in HST (previous day)

9:00 pm21:00 JST (Japan Standard Time) (Okinawa, Japan). Offset UTC +9:00 hours
2:00 am02:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours

9:00 pm21:00 Okinawa, Japan / 2:00 am02:00 HST

Okinawa, JapanHST
12am (midnight)5am
1am6am
2am7am
3am8am
4am9am
5am10am
6am11am
7am12pm (noon)
8am1pm
9am2pm
10am3pm
11am4pm
12pm (noon)5pm
1pm6pm
2pm7pm
3pm8pm
4pm9pm
5pm10pm
6pm11pm
7pm12am (midnight)
8pm1am
9pm2am
10pm3am
11pm4am
00:0005:00
01:0006:00
02:0007:00
03:0008:00
04:0009:00
05:0010:00
06:0011:00
07:0012:00
08:0013:00
09:0014:00
10:0015:00
11:0016:00
12:0017:00
13:0018:00
14:0019:00
15:0020:00
16:0021:00
17:0022:00
18:0023:00
19:0000:00
20:0001:00
21:0002:00
22:0003:00
23:0004:00

Okinawa Information

Time Zone

Abbreviation / Name
JST - Japan Standard Time
UTC / GMT Offset
+9:00 hours during Japan Standard Time, currently in use.

Okinawa Facts

Country
Japan
Alternative Names
Lungsod ng Okinawa, OKA, Okinava, Okinawa, Okinawa-chhi, Okinawa-chhī, awkynawa, chong sheng shi, chong ying, chong ying shi, mdynt awkynawa, okinawa si, xoa kin a wa, Окинава, Окінава, اوکیناوا, مدينة أوكيناوا, ඔකිනාවා, โอะกินะวะ, 沖縄, 沖縄市, 沖繩市, 오키나와 시
Population
125,483
Currency
Yen (JPY)
Geographic Coordinates
26° 20' N Latitude / 127° 48' E Longitude
International Dialing Code
+81

Hawaii Standard Time

Offset: HST is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: United States

Principal Cities: The largest city in the HST time zone is Honolulu in the United States, with about 371,657 people. Other major cities in this time zone include Pearl City, Hilo, Kailua, Waipahu.

Daylight Saving: Clocks in Hawaii Standard Time (HST) do not change for daylight saving time, so HST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

HST Time Zone Geo Map
HST timezone map

HST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -10 - basic short
  • -1000 - basic
  • -10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Whiskey - Military abbreviation for HST
  • W - short form of 'Whiskey'
IANA/Olson: Reflects HST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Adak
  • America/Atka
  • HST
  • Pacific/Honolulu
  • Pacific/Johnston
  • US/Aleutian
  • US/Hawaii
Time zones with the GMT -10 offset:
  • HAST - Hawaii-Aleutian Standard Time
  • CKT - Cook Island Time
  • HST - Hawaii Standard Time
  • TAHT - Tahiti Time
  • W - Whiskey Time Zone