Time in BIOT and CST
The time difference between British Indian Ocean Time (BIOT) and Central Standard Time (CST) is 12 hours. Central Standard Time is 12 hours behind British Indian Ocean Time.
This means 9am BIOT is 9pm CST (previous day) and 5pm BIOT is 5am CST.
British Indian Ocean Time
- The current local time in BIOT is 4:31 am (July 19, 2026)
- BIOT time zone offset is UTC+06:00
Central Standard Time
- The current local time in CST is 4:31 am (July 19, 2026)
- CST time zone offset is UTC-06:00
How to convert British Indian Ocean Time to Central Standard Time?
Subtract 12 hours from British Indian Ocean Time to get Central Standard Time.
Time in BIOT
00:00
Time in CST
00:00
Use the slider above to convert British Indian Ocean Time to Central Standard 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 | CST |
|---|---|
| 12am | 12pm |
| 1am | 1pm |
| 2am | 2pm |
| 3am | 3pm |
| 4am | 4pm |
| 5am | 5pm |
| 6am | 6pm |
| 7am | 7pm |
| 8am | 8pm |
| 9am | 9pm |
| 10am | 10pm |
| 11am | 11pm |
| 12pm | 12am |
| 1pm | 1am |
| 2pm | 2am |
| 3pm | 3am |
| 4pm | 4am |
| 5pm | 5am |
| 6pm | 6am |
| 7pm | 7am |
| 8pm | 8am |
| 9pm | 9am |
| 10pm | 10am |
| 11pm | 11am |