World Timezones

GST to AST Converter

Compare AST to GST instead
Gulf Standard Time8:36 amFri, Jun 5
Gulf Standard TimeGST
Middle East · UTC+4
8:36 amFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Arabia Standard TimeAST
Middle East · UTC+3
7:36 amFri, Jun 5
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p

Offset

The time difference between Gulf Standard Time and Arabia Standard Time is 1 hour.

1 hour

Gulf Standard Time (GST) is ahead of Arabia Standard Time (AST).

GST: UTC+4

AST: UTC+3

Neither Gulf Standard Time nor Arabia Standard Time is currently observing daylight saving time.

When to schedule

Business-hours overlap: 10 AM–5 PM in Gulf Standard Time (9 AM–4 PM in Arabia Standard Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 1:00 PM Gulf Standard Time (12:00 PM Arabia Standard Time).

Note: the working week in Saudi Arabia runs Sunday–Thursday; Friday–Saturday is the weekend, so overlap on those days is limited.

About these zones

Gulf Standard Time is also known as GST. To call United Arab Emirates, dial +971.

Arabia Standard Time is also known as AST. To call Saudi Arabia, dial +966.

Arabia Standard Time is approximately 550 miles west of Gulf Standard Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

GSTASTDay
12:00 am11:00 pm-1 day
1:00 am12:00 amSame day
2:00 am1:00 amSame day
3:00 am2:00 amSame day
4:00 am3:00 amSame day
5:00 am4:00 amSame day
6:00 am5:00 amSame day
7:00 am6:00 amSame day
8:00 am7:00 amSame day
9:00 am8:00 amSame day
10:00 am9:00 amSame day
11:00 am10:00 amSame day
12:00 pm11:00 amSame day
1:00 pm12:00 pmSame day
2:00 pm1:00 pmSame day
3:00 pm2:00 pmSame day
4:00 pm3:00 pmSame day
5:00 pm4:00 pmSame day
6:00 pm5:00 pmSame day
7:00 pm6:00 pmSame day
8:00 pm7:00 pmSame day
9:00 pm8:00 pmSame day
10:00 pm9:00 pmSame day
11:00 pm10:00 pmSame day

Daylight saving time

Neither Gulf Standard Time nor Arabia Standard Time observes daylight saving time. The offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Gulf Standard Time
Sunrise
5:29 AM
Sunset
7:07 PM
Day length
13h 38m
Arabia Standard Time
Sunrise
5:05 AM
Sunset
6:41 PM
Day length
13h 36m

Daylight overlap: 13h 3m — 6:05 AM–7:07 PM in Gulf Standard Time (5:05 AM–6:07 PM in Arabia Standard Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Gulf Standard Time

Cities in Arabia Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Gulf Standard Time

  • DWC
  • DXB
  • SHJ
  • AUH

Airports in Arabia Standard Time

  • JED
  • RUH
  • MED
  • DMM

Related conversions

Common conversions

What is 9:00 am GST in AST?
9:00 am GST is 8:00 am AST.
What is 12:00 pm GST in AST?
12:00 pm GST is 11:00 am AST.
What is 12:30 pm GST in AST?
12:30 pm GST is 11:30 am AST.
What is 2:00 pm GST in AST?
2:00 pm GST is 1:00 pm AST.
What is 5:00 pm GST in AST?
5:00 pm GST is 4:00 pm AST.
What is 11:30 pm GST in AST?
11:30 pm GST is 10:30 pm AST.