Time in IDLW and GMT
The time difference between International Date Line West Time (IDLW) and Greenwich Mean Time (GMT) is 12 hours. Greenwich Mean Time is 12 hours ahead of International Date Line West Time.
This means 9am IDLW is 9pm GMT and 5pm IDLW is 5am GMT (next day).
International Date Line West Time
- The current local time in IDLW is 12:36 am (July 19, 2026)
- IDLW time zone offset is UTC-12:00
Greenwich Mean Time
- The current local time in GMT is 12:36 pm (July 18, 2026)
- GMT time zone offset is UTC+00:00
How to convert International Date Line West Time to Greenwich Mean Time?
Add 12 hours to International Date Line West Time to get Greenwich Mean Time.
Time in IDLW
00:00
Time in GMT
00:00
Use the slider above to convert International Date Line West Time to Greenwich Mean 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
| IDLW | GMT |
|---|---|
| 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 |