GMT to HST converter

Greenwich Mean Time (the same as UTC, all year) to Hawaii Time (Honolulu).

GMT12:07 AMSat 31 Oct 2026

→

HST2:07 PMFri 30 Oct 2026

HST is 10 h behind GMT.

Pick a time in GMT

⇄ HST to GMT

9:00 AM GMT = 11:00 PM HST previous day

Best time to meet

No hour falls inside 9 AM to 5 PM in both places. The least painful: around 7:00 PM GMT, which is 9:00 AM HST.

GMT to HST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

GMT	HST
12:00 AM GMT	2:00 PM HST previous day
1:00 AM GMT	3:00 PM HST previous day
2:00 AM GMT	4:00 PM HST previous day
3:00 AM GMT	5:00 PM HST previous day
4:00 AM GMT	6:00 PM HST previous day
5:00 AM GMT	7:00 PM HST previous day
6:00 AM GMT	8:00 PM HST previous day
7:00 AM GMT	9:00 PM HST previous day
8:00 AM GMT	10:00 PM HST previous day
9:00 AM GMT	11:00 PM HST previous day
10:00 AM GMT	12:00 AM HST
11:00 AM GMT	1:00 AM HST
12:00 PM GMT	2:00 AM HST
1:00 PM GMT	3:00 AM HST
2:00 PM GMT	4:00 AM HST
3:00 PM GMT	5:00 AM HST
4:00 PM GMT	6:00 AM HST
5:00 PM GMT	7:00 AM HST
6:00 PM GMT	8:00 AM HST
7:00 PM GMT	9:00 AM HST
8:00 PM GMT	10:00 AM HST
9:00 PM GMT	11:00 AM HST
10:00 PM GMT	12:00 PM HST
11:00 PM GMT	1:00 PM HST

Quick answers

9:00 AM GMT = 11:00 PM HST (previous day)
12:00 PM GMT = 2:00 AM HST
3:00 PM GMT = 5:00 AM HST
5:00 PM GMT = 7:00 AM HST
9:00 AM HST = 7:00 PM GMT
12:00 PM HST = 10:00 PM GMT
5:00 PM HST = 3:00 AM GMT (next day)

Does the gap change during the year?

No. HST is 10 h behind GMT all year.

GMT does not change its clocks. HST does not change its clocks.

About GMT and HST

GMT here means Greenwich Mean Time, the clock in the same as UTC, all year. Right now it is UTC+0. It has no daylight saving.

HST here means Hawaii Time, the clock in Honolulu. Right now it is UTC−10. It has no daylight saving.

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