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HST
Hawaii Standard Time
GMT -10
12am
3am
6am
9am
12pm
3pm
6pm
9pm
HNP
Heure Normale du Pacifique
GMT -8
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

The selected date and time will appear here when the converter loads.

HST and HNP examples

These examples always use HST (UTC-10) and HNP (UTC-8). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

HST is 2 hours behind HNP.

How the time difference changes

HST is 2 hours behind HNP year-round.

Working hours of 9:00 am to 5:00 pm in HST correspond to 11:00 am to 7:00 pm in HNP.Working hours of 09:00 to 17:00 in HST correspond to 11:00 to 19:00 in HNP.

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

Time Difference

Hawaii Standard Time is 2 hours behind Heure Normale du Pacifique
2:00 am02:00 in HST is 4:00 am04:00 in HNP

HST to HNP call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in HST which corresponds to 11am-5pm11:00-17:00 in HNP

2:00 am02:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours
4:00 am04:00 Heure Normale du Pacifique (HNP). Offset UTC -8:00 hours

2:00 am02:00 HST / 4:00 am04:00 HNP

HSTHNP
12am (midnight)2am
1am3am
2am4am
3am5am
4am6am
5am7am
6am8am
7am9am
8am10am
9am11am
10am12pm (noon)
11am1pm
12pm (noon)2pm
1pm3pm
2pm4pm
3pm5pm
4pm6pm
5pm7pm
6pm8pm
7pm9pm
8pm10pm
9pm11pm
10pm12am (midnight)
11pm1am
00:0002:00
01:0003:00
02:0004:00
03:0005:00
04:0006:00
05:0007:00
06:0008:00
07:0009:00
08:0010:00
09:0011:00
10:0012:00
11:0013:00
12:0014:00
13:0015:00
14:0016:00
15:0017:00
16:0018:00
17:0019:00
18:0020:00
19:0021:00
20:0022:00
21:0023:00
22:0000:00
23:0001:00

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 350,964 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; see upcoming clock changes worldwide.

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

Heure Normale du Pacifique

Offset: HNP is 8 hours behind Greenwich Mean Time (GMT) and is used in America

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the HNP time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).

Daylight saving time clock moves back for one hourStart: Heure Normale du Pacifique (HNP) started on Sunday, November 2, 2025 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

Daylight saving time clock moves forward for one hourEnd: Heure Normale du Pacifique (HNP) ends on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See upcoming clock changes worldwide.

HNP representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for HNP
  • U - short form of 'Uniform'
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone