Convert time from WEST to BST. Enter any time to see the equivalent BST time, compare current WEST and BST times side by side, and find overlapping business hours for calls and meetings.
Use this WEST to BST converter to compare Portugal and United Kingdom time, check the 0 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM WEST / 9:00 AM BST.
Converting between Western European Summer Time and British Summer Time means no offset adjustment — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Western European Summer Time (UTC +1) that you want to convert. Hit "Now" to load the current west time instantly, or use "+1h" to step forward and compare.
The equivalent British Summer Time (UTC +1) time appears immediately. Since bst is 0 hours behind of west, 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 — useful when Daylight Saving Time changes the gap.
When someone in Portugal suggests 9:00 AM west, that's 9:00 AM bst. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night west times can land on a different date in bst because of the 0 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 west–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 west. Convert the event time to bst so you know exactly when to tune in — since both zones share the same offset, no conversion is needed but this tool confirms it instantly.
Quick-reference conversion table covering every hour of the day at a glance.
Western European Summer Time to British Summer Time full day schedule
| Western European Summer Time | British Summer Time |
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| 12:00 AM |
12:00 AM
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| 1:00 AM |
1:00 AM
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| 2:00 AM |
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| 3:00 AM |
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| 4:00 AM |
4:00 AM
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| 5:00 AM |
5:00 AM
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| 6:00 AM |
6:00 AM
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| 7:00 AM |
7:00 AM
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| 8:00 AM |
8:00 AM
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| 9:00 AM |
9:00 AM
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| 10:00 AM |
10:00 AM
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| 11:00 AM |
11:00 AM
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| 12:00 PM |
12:00 PM
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| 1:00 PM |
1:00 PM
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| 2:00 PM |
2:00 PM
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| 3:00 PM |
3:00 PM
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| 4:00 PM |
4:00 PM
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| 5:00 PM |
5:00 PM
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| 6:00 PM |
6:00 PM
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| 7:00 PM |
7:00 PM
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| 8:00 PM |
8:00 PM
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| 9:00 PM |
9:00 PM
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| 10:00 PM |
10:00 PM
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| 11:00 PM |
11:00 PM
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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 west 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 British Summer Time. Use these pages when scheduling with United Kingdom from a different region.
