Time in BST and CHADT
The time difference between British Summer Time (BST) and Chatham Daylight Time (CHADT) is 12 hours 45 minutes. Chatham Daylight Time is 12 hours 45 minutes ahead of British Summer Time.
This means 9am BST is 9:45pm CHADT and 5pm BST is 5:45am CHADT (next day).
British Summer Time
- The current local time in BST is 2:10 pm (July 3, 2026)
- BST time zone offset is UTC+01:00
Chatham Daylight Time
- The current local time in CHADT is 2:55 am (July 4, 2026)
- CHADT time zone offset is UTC+13:45
How to convert British Summer Time to Chatham Daylight Time?
Add 12 hours 45 minutes to British Summer Time to get Chatham Daylight Time.
Time in BST
00:00
Time in CHADT
00:00
Use the slider above to convert British Summer Time to Chatham Daylight Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| BST | CHADT |
|---|---|
| 12am | 12:45pm |
| 1am | 1:45pm |
| 2am | 2:45pm |
| 3am | 3:45pm |
| 4am | 4:45pm |
| 5am | 5:45pm |
| 6am | 6:45pm |
| 7am | 7:45pm |
| 8am | 8:45pm |
| 9am | 9:45pm |
| 10am | 10:45pm |
| 11am | 11:45pm |
| 12pm | 0:45am |
| 1pm | 1:45am |
| 2pm | 2:45am |
| 3pm | 3:45am |
| 4pm | 4:45am |
| 5pm | 5:45am |
| 6pm | 6:45am |
| 7pm | 7:45am |
| 8pm | 8:45am |
| 9pm | 9:45am |
| 10pm | 10:45am |
| 11pm | 11:45am |