SGT to HST time converter

HST is 18 hours behind SGT. When it is 9:00 AM in SGT, it is 3:00 PM (Fri, Oct 16) in HST.

SGT UTC+8

Saturday, October 17, 2026

HST UTC-10

Friday, October 16, 2026

SGT
Singapore Time
Sat, Oct 17
UTC+8
HST
Hawaii-Aleutian Standard Time
Fri, Oct 16
UTC-10-18h
Finding your time zone…
Shared working hours (9:00–18:00)

SGT to HST conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 12:00 PM in SGT (3:00 PM – 6:00 PM in HST).

Daylight saving time and the difference

The difference stays 18 hours all year.

More conversions

HST to SGTSGT to UTCSGT to GMTSGT to ESTSGT to CSTSGT to MSTSGT to PSTSGT to CETSGT to MSKSGT to GSTSGT to PKTSGT to ISTSGT to PHT
UTC to HSTGMT to HSTEST to HSTCST to HSTMST to HSTPST to HSTCET to HSTMSK to HSTGST to HSTPKT to HSTIST to HSTPHT to HST

Questions and answers

What is the time difference between SGT and HST?

HST is 18 hours behind SGT.

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

When it is 9:00 AM in SGT, it is 3:00 PM (Fri, Oct 16) in HST.

When is the best time to call HST from SGT?

Both sides are at work from 9:00 AM – 12:00 PM in SGT (3:00 PM – 6:00 PM in HST).

Does the time difference between SGT and HST change?

No. The difference stays 18 hours all year.