Singapore to London Time Converter
London is 8 hours behind Singapore (SGT) in winter. During UK BST, London is 7 hours behind.
Daylight saving note: Singapore never observes DST. During UK BST (late March–late October), the gap narrows from 8h to 7h.
SGT to GMT Conversion Table
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇸🇬 SGT | 🇬🇧 SGT → GMTUTC+8 to UTC+0 | 🇬🇧 SGT → BSTUTC+8 to UTC+1 | Note |
|---|---|---|---|
| 00:00 | 4:00 PM | 5:00 PM | prev day |
| 01:00 | 5:00 PM | 6:00 PM | prev day |
| 02:00 | 6:00 PM | 7:00 PM | prev day |
| 03:00 | 7:00 PM | 8:00 PM | prev day |
| 04:00 | 8:00 PM | 9:00 PM | prev day |
| 05:00 | 9:00 PM | 10:00 PM | prev day |
| 06:00 | 10:00 PM | 11:00 PM | prev day |
| 07:00 | 11:00 PM | 12:00 AM | prev day |
| 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.
Best Hours to Schedule Singapore–London Calls
From Singapore, London becomes reachable in the late afternoon. Singapore's 5:00–7:00 PM SGT window maps to 9:00–11:00 AM London (GMT) — both sides in business hours. A 6:00 PM Singapore call is 10:00 AM London in winter (9:00 AM during BST).
About Singapore (SGT)
Singapore (SGT, UTC+8) is Asia's premier financial hub and never observes DST. SGT is one of the most stable timezone offsets in the world. Singapore handles approximately 41% of US-ASEAN trade and maintains strong financial ties with London through banking, asset management, and professional services.
About London (GMT)
London (GMT/BST) is 8 hours behind Singapore. When Singapore starts work at 9 AM SGT, it is 1:00 AM in London — the middle of the night. The Singapore-London overlap exists only in Singapore's late afternoon, when London is in its core morning.
How to Avoid Singapore–London Conversion Mistakes
Use the live clocks and the table for different jobs. The live clocks show the current offset between Singapore and London. The table gives you a stable reference for planning common hours. If the page has more than one table column, pick the column that matches the season or DST state shown in the column label.
Daylight saving is the main trap. Some pairs stay fixed all year, while others move by one hour because only one side changes clocks, or because the two sides change on different dates. That is why this page keeps the daylight saving note near the live clocks and labels alternate table scenarios instead of hiding the offset change in a paragraph.
Always check the calendar date when the converted time lands near midnight. A late evening time in Singapore can become the next day in London, and an early morning time can still be the previous day. If the table marks "next day" or "prev day", include that date shift in the message or calendar invite.
Abbreviations can be ambiguous. ET can mean EST or EDT; London can be GMT or BST; Sydney can be AEST or AEDT. City names and IANA time zones are safer for exact scheduling than abbreviations alone. For recurring meetings, test the same local time once in January and once in July before you lock it in.
For one-off events, enter the exact date and time in the main time zone converter or meeting scheduler if the table does not show your hour. That keeps the answer tied to the correct daylight saving rule instead of a memorized offset.
When you share the result, write both local times in one line: "10:00 AM SGT/ converted GMT time." For client calls, flights, webinars, launches, and deadlines, also include the date. The extra wording feels repetitive, but it gives every recipient a second way to catch a timezone mistake before it becomes a missed meeting. It is especially helpful when someone forwards the invite to a third city.
Frequently Asked Questions
How many hours behind is London from Singapore?
London (GMT) is 8 hours behind Singapore (SGT) in winter. During UK BST (late March–October), London is 7 hours behind.
What time is 9 AM Singapore in London?
9:00 AM Singapore (SGT) is 1:00 AM London (GMT) — overnight. During UK BST, 9:00 AM Singapore is 2:00 AM London.
What is the best overlap for Singapore–London calls?
Singapore's 5:00–7:00 PM SGT window maps to 9:00–11:00 AM London (GMT). This is the only practical slot where both sides are in reasonable business hours.
Does Singapore observe daylight saving time?
No. Singapore uses SGT (UTC+8) year-round with no seasonal adjustment. The Singapore-London gap changes only when the UK shifts to BST in spring and reverts to GMT in autumn.