Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

SGT to BST

-7h

SGT

SGTSOURCE

UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

BST

UTC+01:00☀ DST active

HH05

MM00

05:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

SGT

BST

12:00 AM

5:00 PM-1

2:00 AM

7:00 PM-1

4:00 AM

9:00 PM-1

6:00 AM

11:00 PM-1

8:00 AM

1:00 AM

10:00 AM

3:00 AM

12:00 PM

5:00 AM

2:00 PM

7:00 AM

4:00 PM

9:00 AM

6:00 PM

11:00 AM

8:00 PM

1:00 PM

10:00 PM

3:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

SGT and BST on the World Map

The map below highlights the SGT (Singapore Standard Time) and BST (British Summer Time) timezone regions across the globe.

SGT Zone

→

BST Zone

Explore all world timezones interactively →

SGT – Singapore Standard Time

UTC+08:00

Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.

Countries in SGT

Singapore

Major Cities in SGT

Singapore

Key Facts about SGT

•Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
•Singapore does not observe daylight saving time.
•The Singapore Exchange (SGX) operates on SGT.

Daylight Saving:No – UTC+08:00 year-round

Learn more about SGT on Wikipedia

BST – British Summer Time

UTC+01:00

British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.

Countries in BST

United Kingdom

Major Cities in BST

LondonBirminghamManchesterGlasgowEdinburghCardiffBelfastLiverpoolBristolLeeds

Key Facts about BST

•BST runs from the last Sunday in March to the last Sunday in October.
•BST is exactly one hour ahead of GMT, the UK's standard time.
•During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
•The Isle of Man and the Channel Islands also observe BST.

Daylight Saving:Yes – switches to BST

Learn more about BST on Wikipedia

Comparing Time Zones: SGT and BST

SGT runs on Singapore Standard Time (SGT) at UTC+08:00. BST runs on British Summer Time (BST) at UTC+01:00. That puts SGT 7 hours behind BST — a difference of -7h at the current offsets.

In practice, when it is 9:00 AM in SGT it is 2:00 AM in BST. Midnight in SGT is 5:00 PM in BST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

SGT to BST time conversion table

SGT (SGT)	BST (BST)	Day
12:00 AM	5:00 PM	previous day
6:00 AM	11:00 PM	previous day
7:00 AM	12:00 AM	same day
8:00 AM	1:00 AM	same day
9:00 AM	2:00 AM	same day
12:00 PM	5:00 AM	same day
3:00 PM	8:00 AM	same day
5:00 PM	10:00 AM	same day
6:00 PM	11:00 AM	same day
9:00 PM	2:00 PM	same day

Why people convert SGT to BST time

Scheduling a call from SGT to BST: a 10:00 AM start in SGT lands at 3:00 AM in BST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both SGT and BST are inside the 9-to-5 working day between 4:00 PM and 5:00 PM SGT time (9:00 AM–10:00 AM BST). That is roughly 1 hours of usable overlap.
Booking travel or deliveries: tracking BST local time against SGT keeps pickup windows and arrival estimates honest across the -7h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -7h gap is not.
Block 4:00 PM–5:00 PM SGT as the recurring meeting window if you work primarily from SGT and need BST colleagues present.

About SGT (Singapore Standard Time)

Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.

About BST (British Summer Time)

British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.

Best time to call between SGT and BST

Both SGT and BST sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM SGT, which is 9:00 AM–10:00 AM BST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

SGT and BST overlap for only 60 minutes (4:00 PM–5:00 PM SGT), so meetings have to be booked precisely.

SGT is 7 hours behind BST (SGT UTC+08:00 → BST UTC+01:00). The shared working window is 4:00 PM–5:00 PM SGT. Remember to re-check around daylight-saving transitions.