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ULAT to CHOST Converter

Updating current time…
ULAT
Ulaanbaatar 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 ULAT (UTC+8), Oct 3, 2026 = 9:00 pm21:00 CHOST (UTC+9), Oct 3, 2026

ULAT is 1 hour behind CHOST.

ULAT and CHOST examples

These examples always use ULAT (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.

ULAT is 1 hour behind CHOST.

How the time difference changes

ULAT is 1 hour behind CHOST year-round.

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

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

Time Difference

Ulaanbaatar Time is 1 hour behind Choibalsan Summer Time.
8:00 pm20:00 in ULAT is 9:00 pm21:00 in CHOST

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

8:00 pm20:00 Ulaanbaatar Time (ULAT). Offset UTC +8:00 hours
9:00 pm21:00 Choibalsan Summer Time (CHOST). Offset UTC +9:00 hours

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

ULATCHOST
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

Ulaanbaatar Time

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

Countries using this time zone: Mongolia

Principal Cities: The largest city in the ULAT time zone is Ulaanbaatar in Mongolia, with about 844,818 people. Other major cities in this time zone include Erdenet, Darhan, Hovd, Murun kuren.

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

ULAT Time Zone Geo Map
ULAT timezone map

ULAT 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 ULAT
  • 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 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