HST to IST Converter

IST is 15h 30m ahead of HST. When it's 12:00 PM HST, it's 3:30 AM (+1 day) IST.

From

HST · UTC-10

6:09:47PM

Hawaii Standard Time

e.g. Honolulu

To

IST · UTC+5:30

9:39:47AM

India Standard Time

e.g. Kolkata

Open in World ClockIST → HST
9:00 AM HST=12:30 AM(+1 day) IST
12:00 PM HST=3:30 AM(+1 day) IST
5:00 PM HST=8:30 AM(+1 day) IST

Hourly conversion (HST → IST)

HSTIST
12:00 AM3:30 PM
1:00 AM4:30 PM
2:00 AM5:30 PM
3:00 AM6:30 PM
4:00 AM7:30 PM
5:00 AM8:30 PM
6:00 AM9:30 PM
7:00 AM10:30 PM
8:00 AM11:30 PM
9:00 AM12:30 AM(+1 day)
10:00 AM1:30 AM(+1 day)
11:00 AM2:30 AM(+1 day)
12:00 PM3:30 AM(+1 day)
1:00 PM4:30 AM(+1 day)
2:00 PM5:30 AM(+1 day)
3:00 PM6:30 AM(+1 day)
4:00 PM7:30 AM(+1 day)
5:00 PM8:30 AM(+1 day)
6:00 PM9:30 AM(+1 day)
7:00 PM10:30 AM(+1 day)
8:00 PM11:30 AM(+1 day)
9:00 PM12:30 PM(+1 day)
10:00 PM1:30 PM(+1 day)
11:00 PM2:30 PM(+1 day)

Shaded rows are within standard working hours (8am–6pm) on both sides.

Hawaii does not observe daylight saving time, so HST (UTC−10) applies year-round.

IST here is India Standard Time (UTC+5:30). It can also mean Irish Standard Time or Israel Standard Time.

More HST conversions

Frequently asked questions

What is the time difference between HST and IST?
IST is 15h 30m ahead of HST. HST is UTC-10 and IST is UTC+5:30.
What is 12:00 PM HST in IST?
12:00 PM HST is 3:30 AM (+1 day) IST.
Does HST change for daylight saving time?
Hawaii does not observe daylight saving time, so HST (UTC−10) applies year-round.