HAC to BST Converter
Time Difference
Heure Avancée du Centre is 6 hours behind British Summer Time
12:30 pm12:30 in HAC is 6:30 pm18:30 in BST
HAC to BST call time
Best time for a conference call or a meeting is between 8am-12pm in HAC which corresponds to 2pm-6pm in BST
12:30 pm12:30 Heure Avancée du Centre (HAC). Offset UTC -5:00 hours
6:30 pm18:30 British Summer Time (BST). Offset UTC +1:00 hour
12:30 pm12:30 HAC / 6:30 pm18:30 BST
HAC | BST |
---|---|
12am (midnight) | 6am |
1am | 7am |
2am | 8am |
3am | 9am |
4am | 10am |
5am | 11am |
6am | 12pm (noon) |
7am | 1pm |
8am | 2pm |
9am | 3pm |
10am | 4pm |
11am | 5pm |
12pm (noon) | 6pm |
1pm | 7pm |
2pm | 8pm |
3pm | 9pm |
4pm | 10pm |
5pm | 11pm |
6pm | 12am (midnight) |
7pm | 1am |
8pm | 2am |
9pm | 3am |
10pm | 4am |
11pm | 5am |
0:00 | 6:00 |
1:00 | 7:00 |
2:00 | 8:00 |
3:00 | 9:00 |
4:00 | 10:00 |
5:00 | 11:00 |
6:00 | 12:00 |
7:00 | 13:00 |
8:00 | 14:00 |
9:00 | 15:00 |
10:00 | 16:00 |
11:00 | 17:00 |
12:00 | 18:00 |
13:00 | 19:00 |
14:00 | 20:00 |
15:00 | 21:00 |
16:00 | 22:00 |
17:00 | 23:00 |
18:00 | 0:00 |
19:00 | 1:00 |
20:00 | 2:00 |
21:00 | 3:00 |
22:00 | 4:00 |
23:00 | 5:00 |
Heure Avancée du Centre
Offset: HAC is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
HAC representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates five hour and zero minutes time differences to the west of the zero meridian.
- Romeo - Military abbreviation for HAC
- R - short form of 'Romeo'
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Britain (UK), Guernsey, Isle of Man, Jersey
Principal Cities: The largest city in the BST timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Birmingham, Glasgow, Liverpool, Saint Helier

Daylight Saving: British Summer Time (BST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Greenwich Mean Time (GMT).
Start: British Summer Time (BST) started on Sunday, March 26, 2023 at 1:00 am local time and clocks were set one hour forward to Sunday, March 26, 2023, 2:00 am. Daylight saving starts annually the on last Sunday of March
End: British Summer Time (BST) ends on Sunday, October 29, 2023 at 2:00 am local time and clocks are set one hour back to Sunday, October 29, 2023, 1:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
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 one hour and zero minutes time differences 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
- Brasilia Standard Time - UTC -3
- 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