CHOST to BST Converter
CHOST is not used on this date
This converter keeps CHOST at UTC+9. Choibalsan uses CHOT (UTC+8) on this date. Open the CHOT converter, or choose Baruun Urt for city-specific time.Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
9:00 pm21:00 CHOST (UTC+9), Oct 16, 2026 = 1:00 pm13:00 BST (UTC+1), Oct 16, 2026
CHOST is 8 hours ahead of BST.
CHOST and BST examples
These examples always use CHOST (UTC+9) and BST (UTC+1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CHOST is 8 hours ahead of BST.
How the time difference changes
For most of the year, CHOST is 8 hours ahead of BST. From Oct 25, 2026 to Mar 28, 2027, CHOST is 9 hours ahead of GMT.
For most of the year, working hours of 9:00 am to 6:00 pm in CHOST correspond to 1:00 am to 10:00 am in BST. At other times of the year, working hours of 9:00 am to 6:00 pm in CHOST correspond to 12:00 am to 9:00 am in GMT.For most of the year, working hours of 09:00 to 18:00 in CHOST correspond to 01:00 to 10:00 in BST. At other times of the year, working hours of 09:00 to 18:00 in CHOST correspond to 00:00 to 09:00 in GMT.
Compare CHOST time with BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Choibalsan Summer Time is 8 hours ahead of British Summer Time.
9:00 pm21:00 in CHOST is 1:00 pm13:00 in BST
CHOST to BST call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in CHOST which corresponds to 9am-10am09:00-10:00 in BST
9:00 pm21:00 Choibalsan Summer Time (CHOST). Offset UTC +9:00 hours
1:00 pm13:00 British Summer Time (BST). Offset UTC +1:00 hour
9:00 pm21:00 CHOST / 1:00 pm13:00 BST
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.
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Choibalsan Summer Time
Offset: CHOST is 9 hours ahead of Greenwich Mean Time (GMT).
CHOST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +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.
- India - Military abbreviation for CHOST
- I - short form of 'India'
- 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
British Summer Time
Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom
Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.
Current time in the United Kingdom: UK time now
Today all shaded areas are on BST.
Daylight Saving: British Summer Time (BST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 29, 2026 at 1:00 am01:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 2:00 am02:00. Daylight saving starts annually on the last Sunday of March.
End: British Summer Time (BST) ends on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
See United Kingdom daylight saving time and upcoming clock changes worldwide.
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time