ACT
ASEAN Common Time
GMT +8
12am
3am
6am
9am
12pm
3pm
6pm
9pm
OMST
Omsk Standard Time
GMT +6
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

ACT is 2 hours ahead of OMST. ACT uses GMT +8, and OMST uses GMT +6 for this comparison.

For example, 8:00 pm ACT is 6:00 pm OMST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 11am-5pm ACT, which is 9am-3pm OMST.

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

Time Difference

ASEAN Common Time is 2 hours ahead of Omsk Standard Time
8:00 pm20:00 in ACT is 6:00 pm18:00 in OMST

ACT to OMST call time
Best time for a conference call or a meeting is between 11am-5pm in ACT which corresponds to 9am-3pm in OMST

8:00 pm20:00 ASEAN Common Time (ACT). Offset UTC +8:00 hours
6:00 pm18:00 Omsk Standard Time (OMST). Offset UTC +6:00 hours

8:00 pm20:00 ACT / 6:00 pm18:00 OMST

ACTOMST
12am (midnight)10pm
1am11pm
2am12am (midnight)
3am1am
4am2am
5am3am
6am4am
7am5am
8am6am
9am7am
10am8am
11am9am
12pm (noon)10am
1pm11am
2pm12pm (noon)
3pm1pm
4pm2pm
5pm3pm
6pm4pm
7pm5pm
8pm6pm
9pm7pm
10pm8pm
11pm9pm
00:0022:00
01:0023:00
02:0000:00
03:0001:00
04:0002:00
05:0003:00
06:0004:00
07:0005:00
08:0006:00
09:0007:00
10:0008:00
11:0009:00
12:0010:00
13:0011:00
14:0012:00
15:0013:00
16:0014:00
17:0015:00
18:0016:00
19:0017:00
20:0018:00
21:0019:00
22:0020:00
23:0021:00

ASEAN Common Time

Offset: ACT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Daylight Saving: Clocks in ASEAN Common Time (ACT) do not change for daylight saving time, so ACT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

ACT 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 ACT
  • H - short form of 'Hotel'
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

Omsk Standard Time

Offset: OMST is 6 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Russia

Principal Cities: The largest city in the OMST time zone is Omsk in Russia, with about 1.129 million people. Other major cities in this time zone include Barnaul, Biysk, Rubtsovsk, Novoaltaysk.

Daylight Saving: Clocks in Omsk Standard Time (OMST) do not change for daylight saving time, so OMST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

OMST Time Zone Geo Map
OMST timezone map

OMST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +06 - basic short
  • +0600 - basic
  • +06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0600 - sign character (+) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Foxtrot - Military abbreviation for OMST
  • F - short form of 'Foxtrot'
Time zones with the GMT +6 offset:
  • ALMT - Alma-Ata Time
  • BST - Bangladesh Standard Time
  • BDT - Bangladesh Time
  • BTT - Bhutan Time
  • F - Foxtrot Time Zone
  • IOT - Indian Chagos Time
  • KGT - Kyrgyzstan Time
  • OMST - Omsk Standard Time
  • QYZT - Qyzylorda Time
  • XJT - Xinjiang Time
  • YEKST - Yekaterinburg Summer Time