HST to GMT Converter

GMT is 10 hours ahead of HST right now.

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

HST to GMT conversion table

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

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

Questions

What is the time difference between HST and GMT?

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

How do I convert HST to GMT?

Add 10 hours to the HST time. For example, 12:00 PM HST is 10:00 PM GMT.