Time in SLST and IDLW
The time difference between Sri Lanka Standard Time (SLST) and International Date Line West Time (IDLW) is 17 hours 30 minutes. International Date Line West Time is 17 hours 30 minutes behind Sri Lanka Standard Time.
This means 9am SLST is 3:30pm IDLW (previous day) and 5pm SLST is 11:30pm IDLW (previous day).
Sri Lanka Standard Time
- The current local time in SLST is 2:38 pm (September 2, 2026)
- SLST time zone offset is UTC+05:30
International Date Line West Time
- The current local time in IDLW is 9:08 pm (September 2, 2026)
- IDLW time zone offset is UTC-12:00
How to convert Sri Lanka Standard Time to International Date Line West Time?
Subtract 17 hours 30 minutes from Sri Lanka Standard Time to get International Date Line West Time.
Time in SLST
00:00
Time in IDLW
00:00
Use the slider above to convert Sri Lanka 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
| SLST | IDLW |
|---|---|
| 12am | 6:30am |
| 1am | 7:30am |
| 2am | 8:30am |
| 3am | 9:30am |
| 4am | 10:30am |
| 5am | 11:30am |
| 6am | 12:30pm |
| 7am | 1:30pm |
| 8am | 2:30pm |
| 9am | 3:30pm |
| 10am | 4:30pm |
| 11am | 5:30pm |
| 12pm | 6:30pm |
| 1pm | 7:30pm |
| 2pm | 8:30pm |
| 3pm | 9:30pm |
| 4pm | 10:30pm |
| 5pm | 11:30pm |
| 6pm | 0:30am |
| 7pm | 1:30am |
| 8pm | 2:30am |
| 9pm | 3:30am |
| 10pm | 4:30am |
| 11pm | 5:30am |