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AWST to CHOST Converter

Updating current time…
AWST
Australian Western Standard Time
GMT +8
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CHOST
Choibalsan Summer Time
GMT +9
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CHOST is not used on this date
This converter keeps CHOST at GMT +9. Choibalsan uses CHOT (GMT +8) on this date. Open the CHOT converter, or choose Baruun Urt for city-specific time.

Quick answers

Selected conversion

8:00 pm20:00 AWST (UTC+8), Oct 11, 2026 = 9:00 pm21:00 CHOST (UTC+9), Oct 11, 2026

AWST is 1 hour behind CHOST.

AWST and CHOST examples

These examples always use AWST (UTC+8) and CHOST (UTC+9). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

AWST is 1 hour behind CHOST.

How the time difference changes

AWST is 1 hour behind CHOST year-round.

Working hours of 9:00 am to 5:00 pm in AWST correspond to 10:00 am to 6:00 pm in CHOST.Working hours of 09:00 to 17:00 in AWST correspond to 10:00 to 18:00 in CHOST.

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

Time Difference

Australian Western Standard Time is 1 hour behind Choibalsan Summer Time.
8:00 pm20:00 in AWST is 9:00 pm21:00 in CHOST

AWST to CHOST call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in AWST which corresponds to 10am-5pm10:00-17:00 in CHOST

8:00 pm20:00 Australian Western Standard Time (AWST). Offset UTC +8:00 hours
9:00 pm21:00 Choibalsan Summer Time (CHOST). Offset UTC +9:00 hours

8:00 pm20:00 AWST / 9:00 pm21:00 CHOST

AWSTCHOST
12:00am1:00am
1:00am2:00am
2:00am3:00am
3:00am4:00am
4:00am5:00am
5:00am6:00am
6:00am7:00am
7:00am8:00am
8:00am9:00am
9:00am10:00am
10:00am11:00am
11:00am12:00pm
12:00pm1:00pm
1:00pm2:00pm
2:00pm3:00pm
3:00pm4:00pm
4:00pm5:00pm
5:00pm6:00pm
6:00pm7:00pm
7:00pm8:00pm
8:00pm9:00pm
9:00pm10:00pm
10:00pm11:00pm
11:00pm12:00am
00:0001:00
01:0002:00
02:0003:00
03:0004:00
04:0005:00
05:0006:00
06:0007:00
07:0008:00
08:0009:00
09:0010:00
10:0011:00
11:0012:00
12:0013:00
13:0014:00
14:0015:00
15:0016:00
16:0017:00
17:0018:00
18:0019:00
19:0020:00
20:0021:00
21:0022:00
22:0023:00
23:0000:00

Australian Western Standard Time

Offset: AWST is 8 hours ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

Principal Cities: The largest city in the AWST time zone is Perth in Australia, with about 2.384 million people. Other major cities in this time zone include Mandurah, Bunbury, Rockingham, Armadale.

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

AWST Time Zone Geo Map
AWST timezone map

AWST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +08 - basic short
  • +0800 - basic
  • +08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for AWST
  • H - short form of 'Hotel'
IANA/Olson: Reflects AWST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Perth
  • Australia/West
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time

Choibalsan Summer Time

Offset: CHOST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia

CHOST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for CHOST
  • I - short form of 'India'
Time zones with the GMT +9 offset:
  • AWDT - Australian Western Daylight Time
  • CHOST - Choibalsan Summer Time
  • I - India Time Zone
  • IRKST - Irkutsk Summer Time
  • JST - Japan Standard Time
  • KST - Korea Standard Time
  • PWT - Palau Time
  • TLT - East Timor Time
  • ULAST - Ulaanbaatar Summer Time
  • WIT - Eastern Indonesian Time
  • YAKT - Yakutsk Time
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT