CHAST to BST Converter
Time Difference
Chatham Island Standard Time is 12 hours and 45 minutes ahead of Greenwich Mean Time
1:30 am01:30 in CHAST is 12:45 pm12:45 in GMT
CHAST to BST call time
Best time for a conference call or a meeting is between 6:45pm-8:45pm in CHAST which corresponds to 7am-9am in BST
1:30 am01:30 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours
12:45 pm12:45 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
1:30 am01:30 CHAST / 12:45 pm12:45 GMT
| CHAST | GMT |
|---|---|
| 12am (midnight) | 11:15 am |
| 1am | 12:15 pm |
| 2am | 1:15 pm |
| 3am | 2:15 pm |
| 4am | 3:15 pm |
| 5am | 4:15 pm |
| 6am | 5:15 pm |
| 7am | 6:15 pm |
| 8am | 7:15 pm |
| 9am | 8:15 pm |
| 10am | 9:15 pm |
| 11am | 10:15 pm |
| 12pm (noon) | 11:15 pm |
| 1pm | 12:15 am |
| 2pm | 1:15 am |
| 3pm | 2:15 am |
| 4pm | 3:15 am |
| 5pm | 4:15 am |
| 6pm | 5:15 am |
| 7pm | 6:15 am |
| 8pm | 7:15 am |
| 9pm | 8:15 am |
| 10pm | 9:15 am |
| 11pm | 10:15 am |
| 0:00 | 11:15 |
| 1:00 | 12:15 |
| 2:00 | 13:15 |
| 3:00 | 14:15 |
| 4:00 | 15:15 |
| 5:00 | 16:15 |
| 6:00 | 17:15 |
| 7:00 | 18:15 |
| 8:00 | 19:15 |
| 9:00 | 20:15 |
| 10:00 | 21:15 |
| 11:00 | 22:15 |
| 12:00 | 23:15 |
| 13:00 | 0:15 |
| 14:00 | 1:15 |
| 15:00 | 2:15 |
| 16:00 | 3:15 |
| 17:00 | 4:15 |
| 18:00 | 5:15 |
| 19:00 | 6:15 |
| 20:00 | 7:15 |
| 21:00 | 8:15 |
| 22:00 | 9:15 |
| 23:00 | 10:15 |
Chatham Island Standard Time
Offset: CHAST is 12 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific
CHAST representations, usage and related time zones
- +1245 - basic
- +12:45 - extended
- +1245 - sign character (+) followed by a four digit time providing hours (12) and minutes (45) of the offset. Indicates twelve hour and forty-five minutes time differences to the east of the zero meridian.
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
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
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