Time in HKT and IDLW
The time difference between Hong Kong Time (HKT) and International Date Line West Time (IDLW) is 20 hours. International Date Line West Time is 20 hours behind Hong Kong Time.
This means 9am HKT is 1pm IDLW (previous day) and 5pm HKT is 9pm IDLW (previous day).
Hong Kong Time
- The current local time in HKT is 8:31 pm (July 18, 2026)
- HKT time zone offset is UTC+08:00
International Date Line West Time
- The current local time in IDLW is 12:31 am (July 19, 2026)
- IDLW time zone offset is UTC-12:00
How to convert Hong Kong Time to International Date Line West Time?
Subtract 20 hours from Hong Kong Time to get International Date Line West Time.
Time in HKT
00:00
Time in IDLW
00:00
Use the slider above to convert Hong Kong 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
| HKT | IDLW |
|---|---|
| 12am | 4am |
| 1am | 5am |
| 2am | 6am |
| 3am | 7am |
| 4am | 8am |
| 5am | 9am |
| 6am | 10am |
| 7am | 11am |
| 8am | 12pm |
| 9am | 1pm |
| 10am | 2pm |
| 11am | 3pm |
| 12pm | 4pm |
| 1pm | 5pm |
| 2pm | 6pm |
| 3pm | 7pm |
| 4pm | 8pm |
| 5pm | 9pm |
| 6pm | 10pm |
| 7pm | 11pm |
| 8pm | 12am |
| 9pm | 1am |
| 10pm | 2am |
| 11pm | 3am |