GST to HST Converter
Time Difference
Gulf Standard Time is 14 hours ahead of Hawaii Standard Time
11:00 pm23:00 in GST is 9:00 am09:00 in HST
GST to HST call time
Best time for a conference call or a meeting is between 8pm-10pm in GST which corresponds to 6am-8am in HST
11:00 pm23:00 Gulf Standard Time (GST). Offset UTC +4:00 hours
9:00 am09:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours
11:00 pm23:00 GST / 9:00 am09:00 HST
GST | HST |
---|---|
12am (midnight) | 10am |
1am | 11am |
2am | 12pm (noon) |
3am | 1pm |
4am | 2pm |
5am | 3pm |
6am | 4pm |
7am | 5pm |
8am | 6pm |
9am | 7pm |
10am | 8pm |
11am | 9pm |
12pm (noon) | 10pm |
1pm | 11pm |
2pm | 12am (midnight) |
3pm | 1am |
4pm | 2am |
5pm | 3am |
6pm | 4am |
7pm | 5am |
8pm | 6am |
9pm | 7am |
10pm | 8am |
11pm | 9am |
0:00 | 10:00 |
1:00 | 11:00 |
2:00 | 12:00 |
3:00 | 13:00 |
4:00 | 14:00 |
5:00 | 15:00 |
6:00 | 16:00 |
7:00 | 17:00 |
8:00 | 18:00 |
9:00 | 19:00 |
10:00 | 20:00 |
11:00 | 21:00 |
12:00 | 22:00 |
13:00 | 23:00 |
14:00 | 0:00 |
15:00 | 1:00 |
16:00 | 2:00 |
17:00 | 3:00 |
18:00 | 4:00 |
19:00 | 5:00 |
20:00 | 6:00 |
21:00 | 7:00 |
22:00 | 8:00 |
23:00 | 9:00 |
Gulf Standard Time
Offset: GST is 4 hours ahead Greenwich Mean Time (GMT) and is used in Asia

GST representations, usage and related time zones
- +04 - basic short
- +0400 - basic
- +04:00 - extended
- +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the east of the zero meridian.
- Delta - Military abbreviation for GST
- D - short form of 'Delta'
- KUYT - Kuybyshev Time
- MSD - Moscow Daylight Time
- SAMT - Samara Time
- AMT - Armenia Time
- AZT - Azerbaijan Time
- D - Delta Time Zone
- GET - Georgia Standard Time
- GST - Gulf Standard Time
- MUT - Mauritius Time
- RET - Reunion Time
- SCT - Seychelles Time
Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific
Countries: It is used in following countries: United States
Principal Cities: The largest city in the HST timezone is Honolulu from USA with population about 371,657 people. Other major cities in the area are Pearl City, Hilo, Kailua, Waipahu
Daylight Saving: Hawaii Standard Time (HST) is not adjusted for daylight saving therefore HST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Hawaii Standard Time remains the same

HST representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the west of the zero meridian.
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
- America/Adak
- America/Atka
- HST
- Pacific/Honolulu
- Pacific/Johnston
- US/Aleutian
- US/Hawaii
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone