UTC to BST Converter
See the current time in UTC (UTC) and BST (London) side by side, the exact time difference right now, and convert any time between the two zones.
UTC to BST Converter
Uses your browser's built-in, DST-aware time-zone data.
About converting UTC to BST
Coordinated Universal Time (UTC) and British Time (London) (London) are in different time zones, so a meeting, call or stream that's convenient in one may be early or late in the other. The clocks above update live and account for daylight saving automatically, so the time difference you see is the real one for today — not a fixed number that goes stale twice a year.
To plan across the two, type a time into the UTC box (or tap a quick preset) and read the BST equivalent, including a "next day" or "previous day" note when the conversion crosses midnight. For any other pair of zones or cities, use the full timezone converter.
UTC vs BST: the time difference through the year
The gap between UTC and BST changes during the year because only one of them uses daylight saving.
| Period | Difference |
|---|---|
| Oct 23, 2026 – Oct 24, 2026 | BST 1 h ahead of UTC |
| Oct 25, 2026 – Mar 27, 2027 | BST same time |
| Mar 28, 2027 – Oct 23, 2027 | BST 1 h ahead of UTC |
Daylight-saving changes in the next year
| Zone | Date | Offset | Change |
|---|---|---|---|
| BST | Oct 25, 2026 | UTC+1 → UTC+0 | Clocks go back 1 hour |
| BST | Mar 28, 2027 | UTC+0 → UTC+1 | Clocks go forward 1 hour |
| BST | Oct 31, 2027 | UTC+1 → UTC+0 | Clocks go back 1 hour |
UTC to BST conversion table
| UTC | BST (when 1 h ahead) | BST (when same time) |
|---|---|---|
| 12:00 AM | 1:00 AM | 12:00 AM |
| 1:00 AM | 2:00 AM | 1:00 AM |
| 2:00 AM | 3:00 AM | 2:00 AM |
| 3:00 AM | 4:00 AM | 3:00 AM |
| 4:00 AM | 5:00 AM | 4:00 AM |
| 5:00 AM | 6:00 AM | 5:00 AM |
| 6:00 AM | 7:00 AM | 6:00 AM |
| 7:00 AM | 8:00 AM | 7:00 AM |
| 8:00 AM | 9:00 AM | 8:00 AM |
| 9:00 AM | 10:00 AM | 9:00 AM |
| 10:00 AM | 11:00 AM | 10:00 AM |
| 11:00 AM | 12:00 PM | 11:00 AM |
| 12:00 PM | 1:00 PM | 12:00 PM |
| 1:00 PM | 2:00 PM | 1:00 PM |
| 2:00 PM | 3:00 PM | 2:00 PM |
| 3:00 PM | 4:00 PM | 3:00 PM |
| 4:00 PM | 5:00 PM | 4:00 PM |
| 5:00 PM | 6:00 PM | 5:00 PM |
| 6:00 PM | 7:00 PM | 6:00 PM |
| 7:00 PM | 8:00 PM | 7:00 PM |
| 8:00 PM | 9:00 PM | 8:00 PM |
| 9:00 PM | 10:00 PM | 9:00 PM |
| 10:00 PM | 11:00 PM | 10:00 PM |
| 11:00 PM | 12:00 AM (next day) | 11:00 PM |
Best time to meet
- 9 AM–5 PM overlap when BST is 1 h ahead9:00 AM–4:00 PM UTC = 10:00 AM–5:00 PM BST (7 h)
- 9 AM–5 PM overlap when BST is same time9:00 AM–5:00 PM UTC = 9:00 AM–5:00 PM BST (8 h)
The two zones
Coordinated Universal Time (UTC) is the world's time standard, kept by atomic clocks. It never changes for daylight saving.
UK time is GMT (UTC+0) in winter and British Summer Time (BST, UTC+1) from the last Sunday in March to the last Sunday in October. Ireland and Portugal follow the same switch dates.