Singapore to London Time Converter
London is 8 hours behind Singapore in winter. During UK BST, London is 7 hours behind. 9:00 AM in Singapore is 1:00 AM in London on GMT and 2:00 AM on BST.
Singapore Hours in London Time
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇸🇬 SGT | 🇬🇧 SGT → GMTUTC+8 to UTC+0, while the UK is on GMT | 🇬🇧 SGT → BSTUTC+8 to UTC+1, while the UK is on BST |
|---|---|---|
| 00:00 | 4:00 PMprev day | 5:00 PMprev day |
| 01:00 | 5:00 PMprev day | 6:00 PMprev day |
| 02:00 | 6:00 PMprev day | 7:00 PMprev day |
| 03:00 | 7:00 PMprev day | 8:00 PMprev day |
| 04:00 | 8:00 PMprev day | 9:00 PMprev day |
| 05:00 | 9:00 PMprev day | 10:00 PMprev day |
| 06:00 | 10:00 PMprev day | 11:00 PMprev day |
| 07:00 | 11:00 PMprev day | 12:00 AM |
| 08:00 | 12:00 AM | 1:00 AM |
| 09:00 | 1:00 AM | 2:00 AM |
| 10:00 | 2:00 AM | 3:00 AM |
| 11:00 | 3:00 AM | 4:00 AM |
| 12:00 | 4:00 AM | 5:00 AM |
| 13:00 | 5:00 AM | 6:00 AM |
| 14:00 | 6:00 AM | 7:00 AM |
| 15:00 | 7:00 AM | 8:00 AM |
| 16:00 | 8:00 AM | 9:00 AM |
| 17:00 | 9:00 AM | 10:00 AM |
| 18:00 | 10:00 AM | 11:00 AM |
| 19:00 | 11:00 AM | 12:00 PM |
| 20:00 | 12:00 PM | 1:00 PM |
| 21:00 | 1:00 PM | 2:00 PM |
| 22:00 | 2:00 PM | 3:00 PM |
| 23:00 | 3:00 PM | 4:00 PM |
"prev day" = converted time falls on the previous calendar day.
The Singapore Day Ends as London Begins
When Singapore starts work at 9:00 AM it is 1:00 AM in London on GMT, the middle of the night. London's 9:00 AM start is 5:00 PM in Singapore on GMT, which is Singapore's 5 PM close, so in winter the two 9-to-5 days touch without overlapping.
Singapore is on UTC+8 all year and doesn't change its clocks, so the only moving part is London: 8 hours on GMT, 7 on BST. A 6:00 PM Singapore call is 10:00 AM in London in winter and 11:00 AM in summer.
The One Summer Hour
The only shared working hour is in summer: 4:00 to 5:00 PM in Singapore is 9:00 AM to 10:00 AM in London on BST, inside both days. In winter the nearest option is a Singapore evening: 5:00 to 6:00 PM is 9:00 AM to 10:00 AM in London on GMT, an hour after Singapore has closed.
| Singapore | London |
|---|---|
| 4:00 PM–5:00 PM | 9:00 AM–10:00 AM |
| SGT → BST: Both inside 9 AM–5 PM Summer: the only hour both 9-to-5 days share. | |
| 5:00 PM–6:00 PM | 9:00 AM–10:00 AM |
| SGT → GMT: Singapore: after 5 PM. London: inside 9 AM–5 PM. Winter: no shared hour; Singapore stays an hour past its close. | |
"Inside 9 AM–5 PM" is a planning assumption for a standard office day on each side, not a claim about any company's hours.
Which Singapore Hours Reach a London Working Hour
Each row is an hour of the Singapore day. A check mark means London is also in a 9-to-5 day at that moment. Only the 4:00 PM row on BST gets one.
| Singapore | London (SGT → GMT) | London (SGT → BST) |
|---|---|---|
| 8:00 AM | 12:00 AM | 1:00 AM |
| 9:00 AM | 1:00 AM | 2:00 AM |
| 10:00 AM | 2:00 AM | 3:00 AM |
| 11:00 AM | 3:00 AM | 4:00 AM |
| 12:00 PM | 4:00 AM | 5:00 AM |
| 1:00 PM | 5:00 AM | 6:00 AM |
| 2:00 PM | 6:00 AM | 7:00 AM |
| 3:00 PM | 7:00 AM | 8:00 AM |
| 4:00 PM | 8:00 AM | 9:00 AM ✓ |
| 5:00 PM | 9:00 AM | 10:00 AM |
| 6:00 PM | 10:00 AM | 11:00 AM |
Each row is an hour of the Singapore day. A check mark means both cities are inside a 9 AM to 5 PM working day at that moment.
- SGT → GMT: no shared working hours.
- SGT → BST: 1 hour shared, 4:00 PM to 5:00 PM Singapore time.
The Two Dates to Watch
The gap moves on the last Sunday in March (8 hours to 7) and on the last Sunday in October (back to 8). A recurring Singapore-time call therefore reaches London an hour later on the clock in summer: 4:00 PM in Singapore is 8:00 AM in London on GMT and 9:00 AM on BST. Put both times in the invite for the weeks after each change.