CST
China Standard Time
GMT +8
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IRKT/IRKST
Irkutsk Time
GMT +8
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IRKST is not observed in the Asia/Irkutsk reference zone on this date
The converter is using IRKT (Irkutsk Time, GMT +8), the current offset for Asia/Irkutsk. Open the IRKT converter.

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

Time Difference

China Standard Time is 0 hours ahead of Irkutsk Time
8:00 pm20:00 in CST is 8:00 pm20:00 in IRKT

CST to IRKT call time
Best time for a conference call or a meeting is between 9am-5pm in CST which corresponds to 9am-5pm in IRKT

8:00 pm20:00 China Standard Time (CST). Offset UTC +8:00 hours
8:00 pm20:00 Irkutsk Time (IRKT). Offset UTC +8:00 hours

8:00 pm20:00 CST / 8:00 pm20:00 IRKT

CSTIRKT
12am (midnight)12am (midnight)
1am1am
2am2am
3am3am
4am4am
5am5am
6am6am
7am7am
8am8am
9am9am
10am10am
11am11am
12pm (noon)12pm (noon)
1pm1pm
2pm2pm
3pm3pm
4pm4pm
5pm5pm
6pm6pm
7pm7pm
8pm8pm
9pm9pm
10pm10pm
11pm11pm
00:0000:00
01:0001:00
02:0002:00
03:0003:00
04:0004:00
05:0005:00
06:0006:00
07:0007:00
08:0008:00
09:0009:00
10:0010:00
11:0011:00
12:0012:00
13:0013:00
14:0014:00
15:0015:00
16:0016:00
17:0017:00
18:0018:00
19:0019:00
20:0020:00
21:0021:00
22:0022:00
23:0023:00

China Standard Time

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

Countries: It is used in following countries: China, Macau, Taiwan

Principal Cities: The largest city in the CST timezone is Shanghai from China with population about 14.609 million people. Other major cities in the area are Zhumadian, Taipei, Beijing, Nanchong

Daylight Saving: China Standard Time (CST) is not adjusted for daylight saving therefore CST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, China Standard Time remains the same

CST Time Zone Geo Map
CST timezone map

CST 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 eight hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for CST
  • H - short form of 'Hotel'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Chongqing
  • Asia/Chungking
  • Asia/Harbin
  • Asia/Macao
  • Asia/Macau
  • Asia/Shanghai
  • Asia/Taipei
  • PRC
  • ROC
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5
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

Irkutsk Summer Time

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

IRKST 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 nine hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for IRKST
  • 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