GMT to HST Converter
UK Time
11:12:18 AM BST
Sunday, June 28, 2026
11h
11h
Hawaii Time
12:12:18 AM HST
Sunday, June 28, 2026
Hawaii Time (HST) is 11 hours behind UK Time (GMT / BST).
Quick Reference
- UK Time
- BST (GMT+1)
GMT starts on Oct 25, 2026
- Hawaii Time
- HST (GMT-10)
No Daylight Saving Time
Cities in GMT
Cities in HST
Frequently Asked Questions
- What is the difference between GMT and HST?
- HST is 11 hours behind GMT.
- How do I convert GMT to HST?
- To convert from GMT to HST, subtract 11 hours. Use the interactive converter on this page to convert specific times.
- What cities are in GMT and HST?
- Cities in GMT include London, Edinburgh, Birmingham, Manchester, Belfast. Cities in HST include Honolulu, Hilo, Kahului, Kaneohe, Kapolei.