HST to BST Time Converter
Use this HST to BST time converter to compare United States and United Kingdom time instantly. BST is 11 hours ahead of HST, so 9:00 AM HST becomes 8:00 PM BST and 5:00 PM HST becomes 4:00 AM (next day) BST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
HST to BST Quick Facts
Use this HST to BST converter to compare United States and United Kingdom time, check the 11 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Find the best overlap for calls and meetings.
How to Convert HST to BST
Converting between Hawaii Standard Time and British Summer Time means accounting for a 11 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Hawaii Standard Time (UTC -10) that you want to convert. Hit "Now" to load the current HST time instantly, or use "+1h" to step forward and compare.
The equivalent British Summer Time (UTC +1) time appears immediately. Since BST is 11 hours ahead of HST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the BST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring United States–United Kingdom calls.
Why Choose Our HST to BST Converter
With 11 hours between HST and BST, business-hours overlap is limited. This tool instantly shows which hours work on both sides, so you can lock in a meeting without a chain of "does 3 PM work for you?" emails.
Late-night HST times can land on a different date in BST because of the 11 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the HST–BST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in HST. Convert the event time to BST so you know exactly when to tune in — with a 11 hours difference, a morning event in United States falls during work hours in United Kingdom.
HST to BST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Hawaii Standard Time to British Summer Time full day schedule
| Hawaii Standard Time | British Summer Time |
|---|---|
| 12:00 AM |
11:00 AM
|
| 1:00 AM |
12:00 PM
|
| 2:00 AM |
1:00 PM
|
| 3:00 AM |
2:00 PM
|
| 4:00 AM |
3:00 PM
|
| 5:00 AM |
4:00 PM
|
| 6:00 AM |
5:00 PM
|
| 7:00 AM |
6:00 PM
|
| 8:00 AM |
7:00 PM
|
| 9:00 AM |
8:00 PM
|
| 10:00 AM |
9:00 PM
|
| 11:00 AM |
10:00 PM
|
| 12:00 PM |
11:00 PM
|
| 1:00 PM |
12:00 AM
(next day)
|
| 2:00 PM |
1:00 AM
(next day)
|
| 3:00 PM |
2:00 AM
(next day)
|
| 4:00 PM |
3:00 AM
(next day)
|
| 5:00 PM |
4:00 AM
(next day)
|
| 6:00 PM |
5:00 AM
(next day)
|
| 7:00 PM |
6:00 AM
(next day)
|
| 8:00 PM |
7:00 AM
(next day)
|
| 9:00 PM |
8:00 AM
(next day)
|
| 10:00 PM |
9:00 AM
(next day)
|
| 11:00 PM |
10:00 AM
(next day)
|
Popular HST Time Converters
Explore more HST conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Convert Other Time Zones to BST
Find the time difference from any major zone into British Summer Time. Use these pages when scheduling with United Kingdom from a different region.