Time in BIOT and WAST
The time difference between British Indian Ocean Time (BIOT) and West Africa Summer Time (WAST) is 4 hours. West Africa Summer Time is 4 hours behind British Indian Ocean Time.
This means 9am BIOT is 5am WAST and 5pm BIOT is 1pm WAST.
British Indian Ocean Time
- The current local time in BIOT is 4:32 am (July 19, 2026)
- BIOT time zone offset is UTC+06:00
West Africa Summer Time
- The current local time in WAST is 12:32 am (July 19, 2026)
- WAST time zone offset is UTC+02:00
How to convert British Indian Ocean Time to West Africa Summer Time?
Subtract 4 hours from British Indian Ocean Time to get West Africa Summer Time.
Time in BIOT
00:00
Time in WAST
00:00
Use the slider above to convert British Indian Ocean Time to West Africa Summer 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
| BIOT | WAST |
|---|---|
| 12am | 8pm |
| 1am | 9pm |
| 2am | 10pm |
| 3am | 11pm |
| 4am | 12am |
| 5am | 1am |
| 6am | 2am |
| 7am | 3am |
| 8am | 4am |
| 9am | 5am |
| 10am | 6am |
| 11am | 7am |
| 12pm | 8am |
| 1pm | 9am |
| 2pm | 10am |
| 3pm | 11am |
| 4pm | 12pm |
| 5pm | 1pm |
| 6pm | 2pm |
| 7pm | 3pm |
| 8pm | 4pm |
| 9pm | 5pm |
| 10pm | 6pm |
| 11pm | 7pm |