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Convert HST to GMT Time - Free Time Zone Converter

Convert Hawaii Standard Time (HST) to Greenwich Mean Time (GMT, UTC+0) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for HST to GMT coordination. Includes 24-hour conversion table and live time displays. Perfect for international scheduling and global team collaboration. Works on all devices with accurate, reliable results.

🌍
HST
Hawaii Standard Time
Current Time
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🕐
GMT
Greenwich Mean Time
Current Time
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Converted Time
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Time Difference
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Your Local Time
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UTC Time
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HST to GMT Time Zone Difference

Greenwich Mean Time is 10 hours ahead of Hawaii Standard Time

Always up-to-date and accurate

24-Hour HST to GMT Conversion Chart

Complete hourly conversion for Hawaii Standard Time to Greenwich Mean Time

12:00 AM
HST
10:00 AM
GMT
00:00 10:00
1:00 AM
HST
11:00 AM
GMT
01:00 11:00
2:00 AM
HST
12:00 PM
GMT
02:00 12:00
3:00 AM
HST
1:00 PM
GMT
03:00 13:00
4:00 AM
HST
2:00 PM
GMT
04:00 14:00
5:00 AM
HST
3:00 PM
GMT
05:00 15:00
6:00 AM
HST
4:00 PM
GMT
06:00 16:00
7:00 AM
HST
5:00 PM
GMT
07:00 17:00
8:00 AM
HST
6:00 PM
GMT
08:00 18:00
9:00 AM
HST
7:00 PM
GMT
09:00 19:00
10:00 AM
HST
8:00 PM
GMT
10:00 20:00
11:00 AM
HST
9:00 PM
GMT
11:00 21:00
12:00 PM
HST
10:00 PM
GMT
12:00 22:00
1:00 PM
HST
11:00 PM
GMT
13:00 23:00
2:00 PM
HST
12:00 AM
GMT
(next day)
14:00 00:00
3:00 PM
HST
1:00 AM
GMT
(next day)
15:00 01:00
4:00 PM
HST
2:00 AM
GMT
(next day)
16:00 02:00
5:00 PM
HST
3:00 AM
GMT
(next day)
17:00 03:00
6:00 PM
HST
4:00 AM
GMT
(next day)
18:00 04:00
7:00 PM
HST
5:00 AM
GMT
(next day)
19:00 05:00
8:00 PM
HST
6:00 AM
GMT
(next day)
20:00 06:00
9:00 PM
HST
7:00 AM
GMT
(next day)
21:00 07:00
10:00 PM
HST
8:00 AM
GMT
(next day)
22:00 08:00
11:00 PM
HST
9:00 AM
GMT
(next day)
23:00 09:00

Best Meeting Times between Hawaii Standard Time and Greenwich Mean Time

Optimal hours for calls between HST and GMT

Compromise times recommended
7:00 AM HST → 5:00 PM GMT
Early Hours
8:00 AM HST → 6:00 PM GMT
Early Hours
6:00 PM HST → 4:00 AM (next day) GMT
Evening

Based on standard business hours (9:00 AM - 6:00 PM) in each time zone

Time Zone Details

Technical information for both time zones

HST

Hawaii Standard Time

Source timezone

UTC Offset -10.0 hours
Abbreviation HST
Type Standard Time
Status Active
GMT

Greenwich Mean Time

Target timezone

UTC Offset 0.0 hours
Abbreviation GMT
Type Standard Time
Status Active

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