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- GMT to IST to London, United Kingdom
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GMT
Time Difference
Greenwich Mean Time is 5 hours and 30 minutes behind India Standard Time and 1 hours behind BST (British Summer Time)
8:30 pm20:30 in GMT is 2:00 am02:00 in IST and is 9:30 pm21:30 in London, United Kingdom
GMT to IST call time
Best time for a conference call or a meeting is between 8am-12:30pm in GMT which corresponds to 1:30pm-6pm in IST
GMT to London call time
Best time for a conference call or a meeting is between 8am-5pm in GMT which corresponds to 9am-6pm in London
8:30 pm20:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
2:00 am02:00 India Standard Time (IST). Offset UTC +5:30 hours
9:30 pm21:30 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
8:30 pm20:30 GMT / 2:00 am02:00 IST / 9:30 pm21:30 London, United Kingdom
| GMT | IST | London, United Kingdom |
|---|---|---|
| 12am (midnight) | 5:30 am | 1am |
| 1am | 6:30 am | 2am |
| 2am | 7:30 am | 3am |
| 3am | 8:30 am | 4am |
| 4am | 9:30 am | 5am |
| 5am | 10:30 am | 6am |
| 6am | 11:30 am | 7am |
| 7am | 12:30 pm | 8am |
| 8am | 1:30 pm | 9am |
| 9am | 2:30 pm | 10am |
| 10am | 3:30 pm | 11am |
| 11am | 4:30 pm | 12pm (noon) |
| 12pm (noon) | 5:30 pm | 1pm |
| 1pm | 6:30 pm | 2pm |
| 2pm | 7:30 pm | 3pm |
| 3pm | 8:30 pm | 4pm |
| 4pm | 9:30 pm | 5pm |
| 5pm | 10:30 pm | 6pm |
| 6pm | 11:30 pm | 7pm |
| 7pm | 12:30 am | 8pm |
| 8pm | 1:30 am | 9pm |
| 9pm | 2:30 am | 10pm |
| 10pm | 3:30 am | 11pm |
| 11pm | 4:30 am | 12am (midnight) |
| 0:00 | 5:30 | 1:00 |
| 1:00 | 6:30 | 2:00 |
| 2:00 | 7:30 | 3:00 |
| 3:00 | 8:30 | 4:00 |
| 4:00 | 9:30 | 5:00 |
| 5:00 | 10:30 | 6:00 |
| 6:00 | 11:30 | 7:00 |
| 7:00 | 12:30 | 8:00 |
| 8:00 | 13:30 | 9:00 |
| 9:00 | 14:30 | 10:00 |
| 10:00 | 15:30 | 11:00 |
| 11:00 | 16:30 | 12:00 |
| 12:00 | 17:30 | 13:00 |
| 13:00 | 18:30 | 14:00 |
| 14:00 | 19:30 | 15:00 |
| 15:00 | 20:30 | 16:00 |
| 16:00 | 21:30 | 17:00 |
| 17:00 | 22:30 | 18:00 |
| 18:00 | 23:30 | 19:00 |
| 19:00 | 0:30 | 20:00 |
| 20:00 | 1:30 | 21:00 |
| 21:00 | 2:30 | 22:00 |
| 22:00 | 3:30 | 23:00 |
| 23:00 | 4:30 | 0:00 |
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo
Principal Cities: The largest city in the GMT timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Abidjan, Dakar, Grand Dakar, Accra
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.
GMT representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
GMT Abbreviation: Several time zones share GMT abbreviation and it could refer to these time zones
- Greenwich Mean Time - UTC +0
- GMT+03:00 - UTC +3
- GMT+06:00 - UTC +6
- GMT - UTC +0
- GMT+11:00 - UTC +11
Time zones with the GMT +0 offset:
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same
IST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +0530 - basic
- +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Asia/Calcutta
- Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
London Information
Time Zone
Abbreviation / Name
BST - British Summer Time
UTC / GMT Offset
+1:00 hour during British Summer Time, currently in use.
London Facts
Country
United Kingdom
Alternative Names
ILondon, LON, Lakana, Landan, Landen, Ljondan, Llundain, Lodoni, Londain, Londan, Londar, Londe, Londen, Londin, Londinium, Londino, Londn, London, London osh, Londona, Londonas, Londoni, Londono, Londons, Londonu, Londra, Londres, Londrez, Londri, Londro, Londye, Londyn, Londýn, Lonn, Lontoo, Loundres, Luan GJon, Lun-tun, Lunden, Lundra, Lundun, Lundunir, Lundúnir, Lung-dung, Lunnainn, Lunnin, Lunnon, Luân Đôn, Lùn-tûn, Lùng-dŭng, Lûn-tun, Lākana, Lůndůn, Lọndọnu, Ranana, Rānana, ilantan, ladana, landan, landana, leondeon, lndn, london, londoni, lun dui, lun dun, lwndwn, lxndxn, rondon, Łondra, Λονδίνο, Лондан, Лондон, Лондон ош, Лондонъ, Лёндан, Լոնդոն, לאנדאן, לונדון, لأندأن, لندن, لوندون, لەندەن, ܠܘܢܕܘܢ, लंडन, लंदन, लण्डन, लन्डन्, लन्दन, লন্ডন, ਲੰਡਨ, લંડન, ଲଣ୍ଡନ, இலண்டன், లండన్, ಲಂಡನ್, ലണ്ടൻ, ලන්ඩන්, ลอนดอน, ລອນດອນ, ལོན་ཊོན།, လန်ဒန်မြို့, ლონდონი, ለንደን, ᎫᎴ ᏗᏍᎪᏂᎯᏱ, ロンドン, 伦敦, 倫敦, 런던
Population
7,556,900
Currency
Pound (GBP)
Geographic Coordinates
51° 30' N Latitude / 0° 07' W Longitude
International Dialing Code
+44
EST to IST GMT to EST PST to EST EST to GMT PST to GMT
