Updating current time…
PGT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ACST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
South Australia is on daylight saving time: ACDT (UTC+10:30) until Sun, Apr 4, 2027.

The Northern Territory stays on ACST (UTC+9:30).

Quick answers

Selected conversion

10:00 pm22:00 PGT (UTC+10), Nov 8, 2026 = 9:30 pm21:30 ACST (UTC+9:30), Nov 8, 2026

PGT is 30 minutes ahead of ACST.

PGT and ACST examples

These examples always use PGT (UTC+10) and ACST (UTC+9:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

PGT is 30 minutes ahead of ACST.

How the time difference changes

PGT is 30 minutes ahead of ACST year-round.

Working hours of 9:00 am to 6:00 pm in PGT correspond to 8:30 am to 5:30 pm in ACST.Working hours of 09:00 to 18:00 in PGT correspond to 08:30 to 17:30 in ACST.

Compare PGT time with ACST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Papua New Guinea Time is 30 minutes ahead of Australian Central Standard Time.
10:00 pm22:00 in PGT is 9:30 pm21:30 in ACST

PGT to ACST call time
Best time for a conference call or a meeting is between 9:30am-6pm09:30-18:00 in PGT which corresponds to 9am-5:30pm09:00-17:30 in ACST.

10:00 pm22:00 Papua New Guinea Time (PGT). Offset UTC +10:00 hours
9:30 pm21:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours

10:00 pm22:00 PGT / 9:30 pm21:30 ACST

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
PGTACST
11:30pm previous day
12:30am
1:30am
2:30am
3:30am
4:30am
5:30am
6:30am
7:30am
8:30am
9:30am
10:30am
11:30am
12:30pm
1:30pm
2:30pm
3:30pm
4:30pm
5:30pm
6:30pm
7:30pm
8:30pm
9:30pm
10:30pm
23:30 previous day
00:30
01:30
02:30
03:30
04:30
05:30
06:30
07:30
08:30
09:30
10:30
11:30
12:30
13:30
14:30
15:30
16:30
17:30
18:30
19:30
20:30
21:30
22:30

Papua New Guinea Time

Offset: PGT is 10 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Papua New Guinea

Principal Cities: The largest city in the PGT time zone is Port Moresby in Papua New Guinea, with about 283,733 people. Other major cities in this time zone include Lae, Mount Hagen, Popondetta, Madang.

Daylight Saving: Clocks in Papua New Guinea Time (PGT) do not change for daylight saving time, so PGT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

PGT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +10 - basic short
  • +1000 - basic
  • +10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Kilo - Military abbreviation for PGT
  • K - short form of 'Kilo'
Time zones with the GMT +10 offset:
  • AEST - Australian Eastern Standard Time
  • CHUT - Chuuk Time
  • ChST - Chamorro Standard Time
  • K - Kilo Time Zone
  • KDT - Korea Daylight Time
  • PGT - Papua New Guinea Time
  • VLAT - Vladivostok Time
  • YAKST - Yakutsk Summer Time
  • YAPT - Yap Time

Australian Central Standard Time

Offset: ACST is 9 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the ACST time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Darwin, Palmerston, Alice Springs, Mount Gambier.

Map of the areas on Australian Central Standard Time (ACST)
ACST all year ACST part of the year

Today the lighter areas are on UTC+10:30 (ACDT).

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Australian Central Daylight Time (ACDT).

123456789101112End: Australian Central Standard Time (ACST) ended on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the first Sunday of October.

123456789101112Start: Australian Central Standard Time (ACST) starts on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00. Standard time starts annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

ACST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0930 - basic
  • +09:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0930 - sign character (+) followed by a four digit time providing hours (09) and minutes (30) of the offset. Indicates an offset of nine hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects ACST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/Darwin
  • Australia/North
  • Australia/South
  • Australia/Yancowinna