From
GMT
London
Time Zone Converter
GMT to HST Time Zone Converter
Convert GMT to HST with a live clock, current time difference, UTC offsets, and work-hour overlap. HST is 11 hours behind GMT.
To
Hawaii Time
Honolulu
When it is 7:30 AM in GMT, it is 8:30 PM in Hawaii Time.
GMT to HST at a glance
Hawaii Time is 11 hours behind GMT. If someone gives you a time in GMT, move the clock by 11 hours to read it in Hawaii Time. A 9:00 AM start in London becomes 10:00 PM in Honolulu.
What GMT covers
GMT is commonly used as the United Kingdom time reference. In summer, the UK moves to British Summer Time. It is a familiar baseline for Europe, Africa, and global remote teams.
What Hawaii Time covers
Hawaii Time is used in Honolulu and the rest of Hawaii. It does not switch for daylight saving time. It is helpful when your team works with travel, hospitality, or customers in the Pacific.
Quick answers
What is the time difference between GMT and HST?
Hawaii Time is 11 hours behind GMT.
What happens to a 3:00 PM meeting in GMT?
It lands at 4:00 AM in HST.
Does daylight saving time matter for GMT to HST?
GMT and Hawaii Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.