World Timezones

SGT to ACST Converter

Compare ACST to SGT instead
Singapore Time12:36 pmFri, Jun 5
Singapore TimeSGT
Asia · UTC+8
12:36 pmFri, 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
Australian Central TimeACST
Oceania · UTC+9:30
2:06 pmFri, Jun 5
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a

Offset

The time difference between Singapore Time and Australian Central Time is 1.5 hours.

1.5 hours

Singapore Time (SGT) is behind Australian Central Time (ACST).

SGT: UTC+8

ACST: UTC+9:30

Neither Singapore Time nor Australian Central Time is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–4 PM in Singapore Time (10 AM–5 PM in Australian Central Time).

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

Suggested time: 12:00 PM Singapore Time (1:30 PM Australian Central Time).

This window may shift by an hour during daylight saving time.

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

Australia

  • New Year's DayThu, Jan 1
  • Australia DayMon, Jan 26
  • Good FridayFri, Apr 3
  • Easter MondayMon, Apr 6
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

About these zones

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

Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.

Australian Central Time is approximately 3,350 miles southeast of Singapore Time.

Quick reference

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

SGTACSTDay
12:00 am1:30 amSame day
1:00 am2:30 amSame day
2:00 am3:30 amSame day
3:00 am4:30 amSame day
4:00 am5:30 amSame day
5:00 am6:30 amSame day
6:00 am7:30 amSame day
7:00 am8:30 amSame day
8:00 am9:30 amSame day
9:00 am10:30 amSame day
10:00 am11:30 amSame day
11:00 am12:30 pmSame day
12:00 pm1:30 pmSame day
1:00 pm2:30 pmSame day
2:00 pm3:30 pmSame day
3:00 pm4:30 pmSame day
4:00 pm5:30 pmSame day
5:00 pm6:30 pmSame day
6:00 pm7:30 pmSame day
7:00 pm8:30 pmSame day
8:00 pm9:30 pmSame day
9:00 pm10:30 pmSame day
10:00 pm11:30 pmSame day
11:00 pm12:30 am+1 day

Daylight saving time

Australian Central Time observes daylight saving time; Singapore Time does not. The offset between the two zones changes when Australian Central Time transitions: on Sunday, October 4, 2026, clocks spring forward from ACST to ACDT.

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

Daylight today

Singapore Time
Sunrise
6:58 AM
Sunset
7:10 PM
Day length
12h 12m
Australian Central Time
Sunrise
7:18 AM
Sunset
5:12 PM
Day length
9h 55m

Daylight overlap: 8h 44m — 6:58 AM–3:42 PM in Singapore Time (8:28 AM–5:12 PM in Australian Central Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Singapore Time

Cities in Australian Central Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Singapore Time

  • SIN

Airports in Australian Central Time

  • ADL

Related conversions

Common conversions

What is 9:00 am SGT in ACST?
9:00 am SGT is 10:30 am ACST.
What is 12:00 pm SGT in ACST?
12:00 pm SGT is 1:30 pm ACST.
What is 12:30 pm SGT in ACST?
12:30 pm SGT is 2:00 pm ACST.
What is 2:00 pm SGT in ACST?
2:00 pm SGT is 3:30 pm ACST.
What is 5:00 pm SGT in ACST?
5:00 pm SGT is 6:30 pm ACST.
What is 11:30 pm SGT in ACST?
11:30 pm SGT is 1:00 am ACST, the next day.