Singapore
London
Convert SGT to GMT
Singapore Time to Greenwich Mean Time — London is 7 hours behind Singapore
Quick Facts
Time Difference
-7 hours
SGT Full Name
Singapore Time
GMT Full Name
Greenwich Mean Time
SGT to GMT Conversion Table
Related Conversions
About SGT and GMT Time Zones
SGT (Singapore Time) is UTC+8 and covers cities like Singapore, Kuala Lumpur. GMT (Greenwich Mean Time) is UTC+0 and covers cities like London, Dublin, Lisbon.
When it's 12:00 PM (noon) in Singapore (SGT), it's 5:00 AM in London (GMT). The time difference between SGT and GMT is 7 hours — London is behind Singapore.
The 8-hour difference makes real-time overlap challenging — early morning calls (7–9 AM SGT) work best.
Use our world clock tool to compare Singapore and London with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between SGT and GMT?
London (GMT) is 7 hours behind Singapore (SGT). The offset is -7 hours.
Is GMT ahead or behind SGT?
GMT is 7 hours behind SGT. SGT is UTC+8 and GMT is UTC+1.
When it's 12:00 PM in Singapore, what time is it in London?
When it's 12:00 PM (noon) in Singapore (SGT), it's 5:00 AM in London (GMT).
When it's 5:00 PM in Singapore, what time is it in London?
When it's 5:00 PM in Singapore (SGT), it's 10:00 AM in London (GMT).