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

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

Time Difference

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

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

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

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

HSTOkinawa, Japan
12am (midnight)7pm
1am8pm
2am9pm
3am10pm
4am11pm
5am12am (midnight)
6am1am
7am2am
8am3am
9am4am
10am5am
11am6am
12pm (noon)7am
1pm8am
2pm9am
3pm10am
4pm11am
5pm12pm (noon)
6pm1pm
7pm2pm
8pm3pm
9pm4pm
10pm5pm
11pm6pm
00:0019:00
01:0020:00
02:0021:00
03:0022:00
04:0023:00
05:0000:00
06:0001:00
07:0002:00
08:0003:00
09:0004:00
10:0005:00
11:0006:00
12:0007:00
13:0008:00
14:0009:00
15:0010:00
16:0011:00
17:0012:00
18:0013:00
19:0014:00
20:0015:00
21:0016:00
22:0017:00
23:0018:00

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

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