GST to PST to IST
Time Difference
Gulf Standard Time is 11 hours ahead of Pacific Daylight Time and 1 hours and 30 minutes behind India Standard Time
2:00 am02:00 in GST is 3:00 pm15:00 in PDT and is 3:30 am03:30 in IST
GST to PST call time
Best time for a conference call or a meeting is between 7pm-9pm in GST which corresponds to 7am-9am in PST
GST to IST call time
Best time for a conference call or a meeting is between 8am-4:30pm in GST which corresponds to 9:30am-6pm in IST
2:00 am02:00 Gulf Standard Time (GST). Offset UTC +4:00 hours
3:00 pm15:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
3:30 am03:30 India Standard Time (IST). Offset UTC +5:30 hours
2:00 am02:00 GST / 3:00 pm15:00 PDT / 3:30 am03:30 IST
GST | PDT | IST |
---|---|---|
12am (midnight) | 1pm | 1:30 am |
1am | 2pm | 2:30 am |
2am | 3pm | 3:30 am |
3am | 4pm | 4:30 am |
4am | 5pm | 5:30 am |
5am | 6pm | 6:30 am |
6am | 7pm | 7:30 am |
7am | 8pm | 8:30 am |
8am | 9pm | 9:30 am |
9am | 10pm | 10:30 am |
10am | 11pm | 11:30 am |
11am | 12am (midnight) | 12:30 pm |
12pm (noon) | 1am | 1:30 pm |
1pm | 2am | 2:30 pm |
2pm | 3am | 3:30 pm |
3pm | 4am | 4:30 pm |
4pm | 5am | 5:30 pm |
5pm | 6am | 6:30 pm |
6pm | 7am | 7:30 pm |
7pm | 8am | 8:30 pm |
8pm | 9am | 9:30 pm |
9pm | 10am | 10:30 pm |
10pm | 11am | 11:30 pm |
11pm | 12pm (noon) | 12:30 am |
0:00 | 13:00 | 1:30 |
1:00 | 14:00 | 2:30 |
2:00 | 15:00 | 3:30 |
3:00 | 16:00 | 4:30 |
4:00 | 17:00 | 5:30 |
5:00 | 18:00 | 6:30 |
6:00 | 19:00 | 7:30 |
7:00 | 20:00 | 8:30 |
8:00 | 21:00 | 9:30 |
9:00 | 22:00 | 10:30 |
10:00 | 23:00 | 11:30 |
11:00 | 0:00 | 12:30 |
12:00 | 1:00 | 13:30 |
13:00 | 2:00 | 14:30 |
14:00 | 3:00 | 15:30 |
15:00 | 4:00 | 16:30 |
16:00 | 5:00 | 17:30 |
17:00 | 6:00 | 18:30 |
18:00 | 7:00 | 19:30 |
19:00 | 8:00 | 20:30 |
20:00 | 9:00 | 21:30 |
21:00 | 10:00 | 22:30 |
22:00 | 11:00 | 23:30 |
23:00 | 12:00 | 0:30 |
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'
- Gulf Standard Time - UTC +4
- Georgia Standard Time - UTC +4
- 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
Pacific Standard Time
Offset: PST is 8 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Pacific Daylight Time (PDT).
End: Pacific Standard Time (PST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Pacific Standard Time (PST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
PST representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight hour and zero minutes time differences to the west of the zero meridian.
- Uniform - Military abbreviation for PST
- U - short form of 'Uniform'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- Pacific Standard Time - UTC -8
- Pitcairn Standard Time - UTC -8
- Peru Standard Time - UTC -5
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST 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, India Standard Time remains the same

IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30