Convert time from BST to HST. Enter any time to see the equivalent HST time, compare current BST and HST times side by side, and find overlapping business hours for calls and meetings.
Use this BST to HST converter to compare United Kingdom and United States time, check the 11 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Find the best overlap for calls and meetings.
Converting between British Summer Time and Hawaii Standard 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 British Summer Time (UTC +1) that you want to convert. Hit "Now" to load the current bst time instantly, or use "+1h" to step forward and compare.
The equivalent Hawaii Standard Time (UTC -10) time appears immediately. Since hst is 11 hours behind of bst, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the hst result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring United Kingdom–United States calls.
With 11 hours between bst and hst, 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 bst times can land on a different date in hst 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 bst–hst 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 bst. Convert the event time to hst so you know exactly when to tune in — with a 11 hours difference, a morning event in United Kingdom hits the evening in United States.
Quick-reference conversion table covering every hour of the day at a glance.
British Summer Time to Hawaii Standard Time full day schedule
| British Summer Time | Hawaii Standard Time |
|---|---|
| 12:00 AM |
1:00 PM
(previous day)
|
| 1:00 AM |
2:00 PM
(previous day)
|
| 2:00 AM |
3:00 PM
(previous day)
|
| 3:00 AM |
4:00 PM
(previous day)
|
| 4:00 AM |
5:00 PM
(previous day)
|
| 5:00 AM |
6:00 PM
(previous day)
|
| 6:00 AM |
7:00 PM
(previous day)
|
| 7:00 AM |
8:00 PM
(previous day)
|
| 8:00 AM |
9:00 PM
(previous day)
|
| 9:00 AM |
10:00 PM
(previous day)
|
| 10:00 AM |
11:00 PM
(previous day)
|
| 11:00 AM |
12:00 AM
|
| 12:00 PM |
1:00 AM
|
| 1:00 PM |
2:00 AM
|
| 2:00 PM |
3:00 AM
|
| 3:00 PM |
4:00 AM
|
| 4:00 PM |
5:00 AM
|
| 5:00 PM |
6:00 AM
|
| 6:00 PM |
7:00 AM
|
| 7:00 PM |
8:00 AM
|
| 8:00 PM |
9:00 AM
|
| 9:00 PM |
10:00 AM
|
| 10:00 PM |
11:00 AM
|
| 11:00 PM |
12:00 PM
|
UK / Ireland summer offset (last Sunday of March to last Sunday of October) — UTC+1, same as CET. During BST, London aligns with continental European working hours rather than the standard 1-hour gap. Winter reverts to GMT (UTC+0).
Explore more bst conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Find the time difference from any major zone into Hawaii Standard Time. Use these pages when scheduling with United States from a different region.
