GST to HST Converter

HST is 14h 0m behind GST. When it's 12:00 PM GST, it's 10:00 PM (−1 day) HST.

From

GST · UTC+4

8:09:51AM

Gulf Standard Time

e.g. Dubai

To

HST · UTC-10

6:09:51PM

Hawaii Standard Time

e.g. Honolulu

Open in World ClockHST → GST
9:00 AM GST=7:00 PM(−1 day) HST
12:00 PM GST=10:00 PM(−1 day) HST
5:00 PM GST=3:00 AM HST

Hourly conversion (GST → HST)

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

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.

More GST conversions

Frequently asked questions

What is the time difference between GST and HST?
HST is 14h 0m behind GST. GST is UTC+4 and HST is UTC-10.
What is 12:00 PM GST in HST?
12:00 PM GST is 10:00 PM (−1 day) HST.
Does GST change for daylight saving time?
GST is a fixed offset of UTC+4 and does not itself change for daylight saving time.