BST to EST to SGT
BST is not used on this date
This converter uses GMT (GMT +0), the offset London uses on this date. Open the GMT converter.Compare BST time with EST and SGT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Greenwich Mean Time is 5 hours ahead of Eastern Standard Time and 8 hours behind Singapore Time
12:00 pm12:00 in GMT is 7:00 am07:00 in EST and is 8:00 pm20:00 in SGT
GMT to EST call time
Best time for a conference call or a meeting is between 2pm-5pm in GMT which corresponds to 9am-12pm in EST
GMT to SGT call time
Best time for a conference call or a meeting is between 8:30am-9:30am in GMT which corresponds to 4:30pm-5:30pm in SGT
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
8:00 pm20:00 Singapore Time (SGT). Offset UTC +8:00 hours
12:00 pm12:00 GMT / 7:00 am07:00 EST / 8:00 pm20:00 SGT
| GMT | EST | SGT |
|---|---|---|
| 12am (midnight) | 7pm | 8am |
| 1am | 8pm | 9am |
| 2am | 9pm | 10am |
| 3am | 10pm | 11am |
| 4am | 11pm | 12pm (noon) |
| 5am | 12am (midnight) | 1pm |
| 6am | 1am | 2pm |
| 7am | 2am | 3pm |
| 8am | 3am | 4pm |
| 9am | 4am | 5pm |
| 10am | 5am | 6pm |
| 11am | 6am | 7pm |
| 12pm (noon) | 7am | 8pm |
| 1pm | 8am | 9pm |
| 2pm | 9am | 10pm |
| 3pm | 10am | 11pm |
| 4pm | 11am | 12am (midnight) |
| 5pm | 12pm (noon) | 1am |
| 6pm | 1pm | 2am |
| 7pm | 2pm | 3am |
| 8pm | 3pm | 4am |
| 9pm | 4pm | 5am |
| 10pm | 5pm | 6am |
| 11pm | 6pm | 7am |
| 00:00 | 19:00 | 08:00 |
| 01:00 | 20:00 | 09:00 |
| 02:00 | 21:00 | 10:00 |
| 03:00 | 22:00 | 11:00 |
| 04:00 | 23:00 | 12:00 |
| 05:00 | 00:00 | 13:00 |
| 06:00 | 01:00 | 14:00 |
| 07:00 | 02:00 | 15:00 |
| 08:00 | 03:00 | 16:00 |
| 09:00 | 04:00 | 17:00 |
| 10:00 | 05:00 | 18:00 |
| 11:00 | 06:00 | 19:00 |
| 12:00 | 07:00 | 20:00 |
| 13:00 | 08:00 | 21:00 |
| 14:00 | 09:00 | 22:00 |
| 15:00 | 10:00 | 23:00 |
| 16:00 | 11:00 | 00:00 |
| 17:00 | 12:00 | 01:00 |
| 18:00 | 13:00 | 02:00 |
| 19:00 | 14:00 | 03:00 |
| 20:00 | 15:00 | 04:00 |
| 21:00 | 16:00 | 05:00 |
| 22:00 | 17:00 | 06:00 |
| 23:00 | 18:00 | 07:00 |
British Summer Time
Offset: BST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey
Principal Cities: The largest city in the BST time zone is London in United Kingdom, with about 7.557 million people. Other major cities in this time zone include Birmingham, Glasgow, Liverpool, Saint Helier.
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.
BST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for BST
- A - short form of 'Alpha'
- Europe/Belfast
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- British Summer Time - UTC +1
- Bangladesh Standard Time - UTC +6
- Bougainville Standard Time - UTC +11
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.175 million people. Other major cities in this time zone include Toronto, Montreal, Brooklyn, Borough of Queens.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.
End: Eastern Standard Time (EST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
Singapore Time
Offset: SGT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: Singapore
Principal Cities: The largest city in the SGT time zone is Singapore in Singapore, with about 3.548 million people.
Daylight Saving: Clocks in Singapore Time (SGT) do not change for daylight saving time, so SGT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
SGT representations, usage and related time zones
- +08 - basic short
- +0800 - basic
- +08:00 - extended
- +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
- Hotel - Military abbreviation for SGT
- H - short form of 'Hotel'
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time