GST to HST time converter

HST is 14 hours behind GST. When it is 9:00 AM in GST, it is 7:00 PM (Fri, Oct 16) in HST.

GST UTC+4

Saturday, October 17, 2026

HST UTC-10

Friday, October 16, 2026

GST
Gulf Standard Time
Sat, Oct 17
UTC+4
HST
Hawaii-Aleutian Standard Time
Fri, Oct 16
UTC-10-14h
Finding your time zone…
Shared working hours (9:00–18:00)

GST to HST conversion table

Every hour of today in GST and the matching time in HST. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 7:00 AM – 8:00 AM in GST (5:00 PM – 6:00 PM in HST): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference stays 14 hours all year.

More conversions

HST to GSTGST to UTCGST to GMTGST to ESTGST to CSTGST to MSTGST to PSTGST to CETGST to MSKGST to PKTGST to ISTGST to SGTGST to PHT
UTC to HSTGMT to HSTEST to HSTCST to HSTMST to HSTPST to HSTCET to HSTMSK to HSTPKT to HSTIST to HSTSGT to HSTPHT to HST

Questions and answers

What is the time difference between GST and HST?

HST is 14 hours behind GST.

What time is it in HST when it is 9 AM in GST?

When it is 9:00 AM in GST, it is 7:00 PM (Fri, Oct 16) in HST.

When is the best time to call HST from GST?

Working hours don't overlap fully. The closest fit is 7:00 AM – 8:00 AM in GST (5:00 PM – 6:00 PM in HST): working hours on one side, early or late on the other.

Does the time difference between GST and HST change?

No. The difference stays 14 hours all year.