Updating current time…
CAST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CHOT
UTC+8
same time
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

8:00 pm20:00 CAST (UTC+8), Oct 27, 2026 = 8:00 pm20:00 CHOT (UTC+8), Oct 27, 2026

CAST and CHOT have the same local time.

CAST and CHOT examples

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

CAST and CHOT have the same local time.

How the time difference changes

CAST and CHOT have the same time year-round.

Working hours of 9:00 am to 6:00 pm in CAST correspond to 9:00 am to 6:00 pm in CHOT.Working hours of 09:00 to 18:00 in CAST correspond to 09:00 to 18:00 in CHOT.

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

Time Difference

Casey Time and Choibalsan Time have the same local time.
8:00 pm20:00 in CAST is 8:00 pm20:00 in CHOT

CAST to CHOT call time
Best time for a conference call or a meeting is between 9am-6pm09:00-18:00 in CAST which corresponds to 9am-6pm09:00-18:00 in CHOT

8:00 pm20:00 Casey Time (CAST). Offset UTC +8:00 hours
8:00 pm20:00 Choibalsan Time (CHOT). Offset UTC +8:00 hours

8:00 pm20:00 CAST / 8:00 pm20:00 CHOT

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
CASTCHOT
12:00am
1:00am
2:00am
3:00am
4:00am
5:00am
6:00am
7:00am
8:00am
9:00am
10:00am
11:00am
12:00pm
1:00pm
2:00pm
3:00pm
4:00pm
5:00pm
6:00pm
7:00pm
8:00pm
9:00pm
10:00pm
11:00pm
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
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22:00
23:00

Casey Time

Offset: CAST is 8 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica

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

CAST 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 CAST
  • 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

Choibalsan Time

Offset: CHOT is 8 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Mongolia

Principal Cities: The largest city in the CHOT time zone is Ulan Bator in Mongolia, with about 844,818 people. Other major cities in this time zone include Erdenet, Darhan, Choibalsan, Nalayh.

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

CHOT 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 CHOT
  • 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