Time in BST and IDLW
The time difference between British Summer Time (BST) and International Day Line West time zone (IDLW) is 13 hours. International Day Line West time zone is 13 hours behind British Summer Time.
British Summer Time
- The current local time in BST is 7:52 am (April 25, 2024)
- BST time zone offset is UTC+01:00
International Day Line West time zone
- The current local time in IDLW is 6:52 pm (April 24, 2024)
- IDLW time zone offset is UTC-12:00
How to convert British Summer Time to International Day Line West time zone?
Subtract 13 hours from British Summer Time to get International Day Line West time zone.
Time in BST
00:00
Time in IDLW
00:00
Use the slider above to convert British Summer Time to International Day Line West time zone 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 | IDLW |
|---|---|
| 12am | 11am |
| 1am | 12pm |
| 2am | 1pm |
| 3am | 2pm |
| 4am | 3pm |
| 5am | 4pm |
| 6am | 5pm |
| 7am | 6pm |
| 8am | 7pm |
| 9am | 8pm |
| 10am | 9pm |
| 11am | 10pm |
| 12pm | 11pm |
| 1pm | 12am |
| 2pm | 1am |
| 3pm | 2am |
| 4pm | 3am |
| 5pm | 4am |
| 6pm | 5am |
| 7pm | 6am |
| 8pm | 7am |
| 9pm | 8am |
| 10pm | 9am |
| 11pm | 10am |