How many hours is IST ahead of AKDT?
As abbreviations, AKDT is always 13.5 hours behind of IST: IST is UTC+5:30 and AKDT is UTC−8. To convert, subtract 13.5 hours.
Check which label you actually need: AKDT (Alaska Time is on AKST today). A time written with an abbreviation that is not in use is usually meant as the local time, so convert between the places instead: right now AKDT is 14.5 hours behind of IST.
When the IST to AKDT time difference changes
For most of the year AKDT is 13.5 hours behind of IST. From 1 November to 31 December 2026, AKDT is 14.5 hours behind of IST instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
| Dates | AKDT vs IST | Length |
|---|---|---|
| 1 November 2026 to 31 December 2026 | 14.5 hours behind | 61 days |
| 1 January 2027 to 13 March 2027 | 14.5 hours behind | 72 days |
| 14 March 2027 to 6 November 2027 | 13.5 hours behind | 238 days |
| 7 November 2027 to 31 December 2027 | 14.5 hours behind | 55 days |
Calling hours for IST and AKDT
- When AKDT is 13.5 hours behind of IST: no shared 09:00 to 17:00 hours; one side has to take the call outside office hours.
- When AKDT is 14.5 hours behind of IST: no shared 09:00 to 17:00 hours; one side has to take the call outside office hours.