SGT to BST Time Converter
BST is 7 hours behind SGT. SGT is UTC+8:00, and BST is UTC+1:00.
Best Time to Call Between SGT and BST
Both zones are inside normal business hours between 4:00 PM and 5:00 PM SGT — that's 9:00 AM to 10:00 AM BST. That's a 1-hour window.
both at work SGT only BST only neither — hours along the strip are SGT.
Common Times Converted
SGT on the left, BST on the right.
SGT to BST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| SGT | BST | Working hours |
|---|---|---|
| 12:00 AM | 5:00 PM prev day | — |
| 1:00 AM | 6:00 PM prev day | — |
| 2:00 AM | 7:00 PM prev day | — |
| 3:00 AM | 8:00 PM prev day | — |
| 4:00 AM | 9:00 PM prev day | — |
| 5:00 AM | 10:00 PM prev day | — |
| 6:00 AM | 11:00 PM prev day | — |
| 7:00 AM | 12:00 AM | — |
| 8:00 AM | 1:00 AM | — |
| 9:00 AM | 2:00 AM | SGT only |
| 10:00 AM | 3:00 AM | SGT only |
| 11:00 AM | 4:00 AM | SGT only |
| 12:00 PM | 5:00 AM | SGT only |
| 1:00 PM | 6:00 AM | SGT only |
| 2:00 PM | 7:00 AM | SGT only |
| 3:00 PM | 8:00 AM | SGT only |
| 4:00 PM | 9:00 AM | Both zones |
| 5:00 PM | 10:00 AM | BST only |
| 6:00 PM | 11:00 AM | BST only |
| 7:00 PM | 12:00 PM | BST only |
| 8:00 PM | 1:00 PM | BST only |
| 9:00 PM | 2:00 PM | BST only |
| 10:00 PM | 3:00 PM | BST only |
| 11:00 PM | 4:00 PM | BST only |
What SGT and BST Actually Are
SGT — Singapore Time
Singapore. Standing at UTC+8:00 as written, and the region does not change its clocks, so that offset holds all year.
Singapore sits at a longitude that would put it near UTC+7, but moved to UTC+8 in 1982 to align with Malaysia and Hong Kong — a trade decision rather than a solar one.
BST — British Summer Time
London, Manchester, Birmingham, Glasgow, and the rest of the UK from late March to late October. Standing at UTC+1:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to GMT. BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.
British Summer Time began in 1916 as a wartime fuel-saving measure and has run every year since, making it one of the oldest continuous daylight saving schemes in the world.
What This Means in Practice
This gap is not fixed
BST changes its clocks and SGT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on SGT
Cities on BST
Frequently Asked Questions
What is the time difference between SGT and BST?
BST is 7 hours behind SGT.
What is 9:00 AM SGT in BST?
9:00 AM SGT is 2:00 AM BST.
What are the best hours to schedule a call between SGT and BST?
Between 4:00 PM and 5:00 PM SGT, which is 9:00 AM to 10:00 AM BST. Both sides are inside normal business hours through that window.
Does the difference between SGT and BST change during the year?
Yes. BST observes daylight saving and SGT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.
Does BST always mean British Summer Time?
BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.