Time in AST and IDLW
The time difference between Atlantic Standard Time (AST) and International Date Line West Time (IDLW) is 8 hours. International Date Line West Time is 8 hours behind Atlantic Standard Time.
This means 9am AST is 1am IDLW and 5pm AST is 9am IDLW.
Atlantic Standard Time
- The current local time in AST is 2:50 pm (July 18, 2026)
- AST time zone offset is UTC-04:00
International Date Line West Time
- The current local time in IDLW is 10:50 pm (July 18, 2026)
- IDLW time zone offset is UTC-12:00
How to convert Atlantic Standard Time to International Date Line West Time?
Subtract 8 hours from Atlantic Standard Time to get International Date Line West Time.
Time in AST
00:00
Time in IDLW
00:00
Use the slider above to convert Atlantic Standard 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
| AST | IDLW |
|---|---|
| 12am | 4pm |
| 1am | 5pm |
| 2am | 6pm |
| 3am | 7pm |
| 4am | 8pm |
| 5am | 9pm |
| 6am | 10pm |
| 7am | 11pm |
| 8am | 12am |
| 9am | 1am |
| 10am | 2am |
| 11am | 3am |
| 12pm | 4am |
| 1pm | 5am |
| 2pm | 6am |
| 3pm | 7am |
| 4pm | 8am |
| 5pm | 9am |
| 6pm | 10am |
| 7pm | 11am |
| 8pm | 12pm |
| 9pm | 1pm |
| 10pm | 2pm |
| 11pm | 3pm |