GMT to HST Converter

HST is 10 hours behind GMT right now.

Greenwich Mean Time (UTC+0)—GMT
Hawaii Time—HST

GMT to HST conversion table

Based on today's offsets (GMT UTC+0, HST UTC−10). Business hours are highlighted.

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

Questions

What is the time difference between GMT and HST?

Right now HST is 10 hours behind GMT. Neither zone uses daylight saving time, so the gap is the same all year.

How do I convert GMT to HST?

Subtract 10 hours from the GMT time. For example, 12:00 PM GMT is 2:00 AM HST.