Time in IRST and CHADT
The time difference between Iran Standard Time (IRST) and Chatham Daylight Time (CHADT) is 10 hours 15 minutes. Chatham Daylight Time is 10 hours 15 minutes ahead of Iran Standard Time.
This means 9am IRST is 7:15pm CHADT and 5pm IRST is 3:15am CHADT (next day).
Iran Standard Time
- The current local time in IRST is 2:14 am (July 19, 2026)
- IRST time zone offset is UTC+03:30
Chatham Daylight Time
- The current local time in CHADT is 12:29 pm (July 19, 2026)
- CHADT time zone offset is UTC+13:45
How to convert Iran Standard Time to Chatham Daylight Time?
Add 10 hours 15 minutes to Iran Standard Time to get Chatham Daylight Time.
Time in IRST
00:00
Time in CHADT
00:00
Use the slider above to convert Iran Standard Time to Chatham Daylight 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
| IRST | CHADT |
|---|---|
| 12am | 10:15am |
| 1am | 11:15am |
| 2am | 12:15pm |
| 3am | 1:15pm |
| 4am | 2:15pm |
| 5am | 3:15pm |
| 6am | 4:15pm |
| 7am | 5:15pm |
| 8am | 6:15pm |
| 9am | 7:15pm |
| 10am | 8:15pm |
| 11am | 9:15pm |
| 12pm | 10:15pm |
| 1pm | 11:15pm |
| 2pm | 0:15am |
| 3pm | 1:15am |
| 4pm | 2:15am |
| 5pm | 3:15am |
| 6pm | 4:15am |
| 7pm | 5:15am |
| 8pm | 6:15am |
| 9pm | 7:15am |
| 10pm | 8:15am |
| 11pm | 9:15am |