Time in BTT and IDLW
The time difference between Bhutan Time (BTT) and International Date Line West Time (IDLW) is 18 hours. International Date Line West Time is 18 hours behind Bhutan Time.
This means 9am BTT is 3pm IDLW (previous day) and 5pm BTT is 11pm IDLW (previous day).
Bhutan Time
- The current local time in BTT is 12:45 pm (September 2, 2026)
- BTT time zone offset is UTC+06:00
International Date Line West Time
- The current local time in IDLW is 6:45 pm (September 2, 2026)
- IDLW time zone offset is UTC-12:00
How to convert Bhutan Time to International Date Line West Time?
Subtract 18 hours from Bhutan Time to get International Date Line West Time.
Time in BTT
00:00
Time in IDLW
00:00
Use the slider above to convert Bhutan Time to International Date Line West 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
| BTT | IDLW |
|---|---|
| 12am | 6am |
| 1am | 7am |
| 2am | 8am |
| 3am | 9am |
| 4am | 10am |
| 5am | 11am |
| 6am | 12pm |
| 7am | 1pm |
| 8am | 2pm |
| 9am | 3pm |
| 10am | 4pm |
| 11am | 5pm |
| 12pm | 6pm |
| 1pm | 7pm |
| 2pm | 8pm |
| 3pm | 9pm |
| 4pm | 10pm |
| 5pm | 11pm |
| 6pm | 12am |
| 7pm | 1am |
| 8pm | 2am |
| 9pm | 3am |
| 10pm | 4am |
| 11pm | 5am |