United Kingdom
GMT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CLST/CLT
Chile Summer Time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CLT is not used on this date
This converter uses CLST (GMT -3), the offset Santiago uses on this date. Open the CLST converter.

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

Time Difference

GMT (Greenwich Mean Time) is 3 hours ahead of Chile Summer Time
12:00 pm12:00 in Belfast, United Kingdom is 9:00 am09:00 in CLST

Belfast to CLST call time
Best time for a conference call or a meeting is between 12pm-5pm in Belfast which corresponds to 9am-2pm in CLST

12:00 pm12:00 GMT (Greenwich Mean Time) (Belfast, United Kingdom). Offset UTC 0:00 hours
9:00 am09:00 Chile Summer Time (CLST). Offset UTC -3:00 hours

12:00 pm12:00 Belfast, United Kingdom / 9:00 am09:00 CLST

Belfast, United KingdomCLST
12am (midnight)9pm
1am10pm
2am11pm
3am12am (midnight)
4am1am
5am2am
6am3am
7am4am
8am5am
9am6am
10am7am
11am8am
12pm (noon)9am
1pm10am
2pm11am
3pm12pm (noon)
4pm1pm
5pm2pm
6pm3pm
7pm4pm
8pm5pm
9pm6pm
10pm7pm
11pm8pm
00:0021:00
01:0022:00
02:0023:00
03:0000:00
04:0001:00
05:0002:00
06:0003:00
07:0004:00
08:0005:00
09:0006:00
10:0007:00
11:0008:00
12:0009:00
13:0010:00
14:0011:00
15:0012:00
16:0013:00
17:0014:00
18:0015:00
19:0016:00
20:0017:00
21:0018:00
22:0019:00
23:0020:00

Belfast Information

Time Zone

Abbreviation / Name
BST - British Summer Time
GMT - Greenwich Mean Time
UTC / GMT Offset
+1:00 hours during British Summer Time, currently in use.
+0:00 hours during Greenwich Mean Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 1am to 2amSunday, March 29, 2026 at 1:00 am local time. DST starts annually on the last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 29, 2026 at 2:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 2am to 1amSunday, October 25, 2026 at 2:00 am local time. DST ends annually on the last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 25, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Belfast Facts

Country
United Kingdom
Alternative Names
BFS, Beal Feirste, Beeal Feirshtey, Belfast, Belfast City, Belfasta, Belfastas, Belfasto, Belfastum, Belffast, Belfāsta, Belpas, Beul-Feirste, Bèlfast, Béal Feirste, Bélfast, Mpelphast, baelpaseuteu, bei er fa si te, belaphasta, belfast, belpaseuteu, berufasuto, blfast, pelpast, Μπέλφαστ, Белфаст, Բելֆաստ, בלפאסט, בעלפאסט, بلفاست, بیلفاسٹ, बेलफास्ट, বেলফাস্ট, பெல்பாஸ்ட், ಬೆಲ್‌ಫಾಸ್ಟ್‌, เบลฟัสต์, ဗဲလဖတ်မြို့, ბელფასტი, ベルファスト, 貝爾法斯特, 贝尔法斯特, 밸파스트, 벨파스트
Population
274,770
Currency
Pound (GBP)
Geographic Coordinates
54° 35' N Latitude / 5° 55' W Longitude
International Dialing Code
+44

Chile Standard Time

Offset: CLT is 4 hours behind Greenwich Mean Time (GMT) and is used in South America

CLT Time Zone Geo Map
CLT timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Chile Summer Time (CLST).

Daylight saving time clock moves forward for one hour from 12am to 1amEnd: Chile Standard Time (CLT) ended on Sunday, September 7, 2025 at 12:00 am local time and clocks were set one hour forward to Sunday, September 7, 2025, 1:00 am local daylight time instead. Standard time ends annually on the first Sunday of September.

Daylight saving time clock moves back for one hour from 12am to 11pmStart: Chile Standard Time (CLT) starts on Sunday, April 5, 2026 at 12:00 am local time and clocks are set one hour back to Saturday, April 4, 2026, 11:00 pm. Standard time starts annually on the first Sunday of April.

CLT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for CLT
  • Q - short form of 'Quebec'
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time