World Timezones

AST to SGT Converter

Compare SGT to AST instead
Arabia Standard Time7:36 amFri, Jun 5
Arabia Standard TimeAST
Middle East · UTC+3
7:36 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
Singapore TimeSGT
Asia · UTC+8
12:36 pmFri, Jun 5
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a

Offset

The time difference between Arabia Standard Time and Singapore Time is 5 hours.

5 hours

Arabia Standard Time (AST) is behind Singapore Time (SGT).

AST: UTC+3

SGT: UTC+8

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

When to schedule

Business-hours overlap: 9 AM–12 PM in Arabia Standard Time (2 PM–5 PM in Singapore Time).

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

Suggested time: 10:00 AM Arabia Standard Time (3:00 PM Singapore Time).

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

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Singapore

  • New Year's DayThu, Jan 1
  • Chinese New YearTue, Feb 17
  • Chinese New YearWed, Feb 18
  • Hari Raya PuasaFri, Mar 20
  • Good FridayFri, Apr 3
  • Labour DayFri, May 1
  • Hari Raya Haji (Tentative Date)Wed, May 27
  • National DayMon, Aug 10
  • DeepavaliMon, Nov 9
  • Christmas DayFri, Dec 25

About these zones

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

Singapore Time is also known as SGT. To call Singapore, dial +65.

Singapore Time is approximately 4,150 miles east of Arabia Standard Time.

Quick reference

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

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

Daylight saving time

Neither Arabia Standard Time nor Singapore 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

Arabia Standard Time
Sunrise
5:05 AM
Sunset
6:41 PM
Day length
13h 36m
Singapore Time
Sunrise
6:58 AM
Sunset
7:10 PM
Day length
12h 12m

Daylight overlap: 9h 5m — 5:05 AM–2:10 PM in Arabia Standard Time (10:05 AM–7:10 PM in Singapore Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Arabia Standard Time

Cities in Singapore Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Arabia Standard Time

  • JED
  • RUH
  • MED
  • DMM

Airports in Singapore Time

  • SIN

Related conversions

Common conversions

What is 9:00 am AST in SGT?
9:00 am AST is 2:00 pm SGT.
What is 12:00 pm AST in SGT?
12:00 pm AST is 5:00 pm SGT.
What is 12:30 pm AST in SGT?
12:30 pm AST is 5:30 pm SGT.
What is 2:00 pm AST in SGT?
2:00 pm AST is 7:00 pm SGT.
What is 5:00 pm AST in SGT?
5:00 pm AST is 10:00 pm SGT.
What is 11:30 pm AST in SGT?
11:30 pm AST is 4:30 am SGT, the next day.