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- CET to IST to SGT to Athens, Greece to London, United Kingdom to EST
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CEST/CET
Central European Summer Time
GMT +2
CET automatically adjusted to CEST time zone, that is in use
SGT
Singapore Time
GMT +8
Athens
Greece
EEST
London
United Kingdom
BST
EDT/EST
Eastern Daylight Time
GMT -4
EST automatically adjusted to EDT time zone, that is in use
Time Difference
Central European Summer Time is 3 hours and 30 minutes behind India Standard Time and 6 hours behind Singapore Time and 1 hours behind EEST (Eastern European Summer Time) and 1 hour ahead of BST (British Summer Time) and 6 hours ahead of Eastern Daylight Time
1:00 am01:00 in CEST is 4:30 am04:30 in IST and is 7:00 am07:00 in SGT and is 2:00 am02:00 in Athens, Greece and is 12:00 am00:00 in London, United Kingdom and is 7:00 pm19:00 in EDT
CET to IST call time
Best time for a conference call or a meeting is between 8am-1:30pm in CET which corresponds to 12:30pm-6pm in IST
CET to SGT call time
Best time for a conference call or a meeting is between 8am-11am in CET which corresponds to 3pm-6pm in SGT
CET to Athens call time
Best time for a conference call or a meeting is between 8am-4pm in CET which corresponds to 10am-6pm in Athens
CET to London call time
Best time for a conference call or a meeting is between 8am-6pm in CET which corresponds to 8am-6pm in London
CET to EST call time
Best time for a conference call or a meeting is between 2pm-6pm in CET which corresponds to 8am-12pm in EST
1:00 am01:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
4:30 am04:30 India Standard Time (IST). Offset UTC +5:30 hours
7:00 am07:00 Singapore Time (SGT). Offset UTC +8:00 hours
2:00 am02:00 EEST (Eastern European Summer Time) (Athens, Greece). Offset UTC +3:00 hours
12:00 am00:00 BST (British Summer Time) (London, United Kingdom). Offset UTC +1:00 hour
7:00 pm19:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
1:00 am01:00 CEST / 4:30 am04:30 IST / 7:00 am07:00 SGT / 2:00 am02:00 Athens, Greece / 12:00 am00:00 London, United Kingdom / 7:00 pm19:00 EDT
| CEST | IST | SGT | Athens, Greece | London, United Kingdom | EDT |
|---|---|---|---|---|---|
| 12am (midnight) | 3:30 am | 6am | 1am | 11pm | 6pm |
| 1am | 4:30 am | 7am | 2am | 12am (midnight) | 7pm |
| 2am | 5:30 am | 8am | 3am | 1am | 8pm |
| 3am | 6:30 am | 9am | 4am | 2am | 9pm |
| 4am | 7:30 am | 10am | 5am | 3am | 10pm |
| 5am | 8:30 am | 11am | 6am | 4am | 11pm |
| 6am | 9:30 am | 12pm (noon) | 7am | 5am | 12am (midnight) |
| 7am | 10:30 am | 1pm | 8am | 6am | 1am |
| 8am | 11:30 am | 2pm | 9am | 7am | 2am |
| 9am | 12:30 pm | 3pm | 10am | 8am | 3am |
| 10am | 1:30 pm | 4pm | 11am | 9am | 4am |
| 11am | 2:30 pm | 5pm | 12pm (noon) | 10am | 5am |
| 12pm (noon) | 3:30 pm | 6pm | 1pm | 11am | 6am |
| 1pm | 4:30 pm | 7pm | 2pm | 12pm (noon) | 7am |
| 2pm | 5:30 pm | 8pm | 3pm | 1pm | 8am |
| 3pm | 6:30 pm | 9pm | 4pm | 2pm | 9am |
| 4pm | 7:30 pm | 10pm | 5pm | 3pm | 10am |
| 5pm | 8:30 pm | 11pm | 6pm | 4pm | 11am |
| 6pm | 9:30 pm | 12am (midnight) | 7pm | 5pm | 12pm (noon) |
| 7pm | 10:30 pm | 1am | 8pm | 6pm | 1pm |
| 8pm | 11:30 pm | 2am | 9pm | 7pm | 2pm |
| 9pm | 12:30 am | 3am | 10pm | 8pm | 3pm |
| 10pm | 1:30 am | 4am | 11pm | 9pm | 4pm |
| 11pm | 2:30 am | 5am | 12am (midnight) | 10pm | 5pm |
| 0:00 | 3:30 | 6:00 | 1:00 | 23:00 | 18:00 |
| 1:00 | 4:30 | 7:00 | 2:00 | 0:00 | 19:00 |
| 2:00 | 5:30 | 8:00 | 3:00 | 1:00 | 20:00 |
| 3:00 | 6:30 | 9:00 | 4:00 | 2:00 | 21:00 |
| 4:00 | 7:30 | 10:00 | 5:00 | 3:00 | 22:00 |
| 5:00 | 8:30 | 11:00 | 6:00 | 4:00 | 23:00 |
| 6:00 | 9:30 | 12:00 | 7:00 | 5:00 | 0:00 |
| 7:00 | 10:30 | 13:00 | 8:00 | 6:00 | 1:00 |
| 8:00 | 11:30 | 14:00 | 9:00 | 7:00 | 2:00 |
| 9:00 | 12:30 | 15:00 | 10:00 | 8:00 | 3:00 |
| 10:00 | 13:30 | 16:00 | 11:00 | 9:00 | 4:00 |
| 11:00 | 14:30 | 17:00 | 12:00 | 10:00 | 5:00 |
| 12:00 | 15:30 | 18:00 | 13:00 | 11:00 | 6:00 |
| 13:00 | 16:30 | 19:00 | 14:00 | 12:00 | 7:00 |
| 14:00 | 17:30 | 20:00 | 15:00 | 13:00 | 8:00 |
| 15:00 | 18:30 | 21:00 | 16:00 | 14:00 | 9:00 |
| 16:00 | 19:30 | 22:00 | 17:00 | 15:00 | 10:00 |
| 17:00 | 20:30 | 23:00 | 18:00 | 16:00 | 11:00 |
| 18:00 | 21:30 | 0:00 | 19:00 | 17:00 | 12:00 |
| 19:00 | 22:30 | 1:00 | 20:00 | 18:00 | 13:00 |
| 20:00 | 23:30 | 2:00 | 21:00 | 19:00 | 14:00 |
| 21:00 | 0:30 | 3:00 | 22:00 | 20:00 | 15:00 |
| 22:00 | 1:30 | 4:00 | 23:00 | 21:00 | 16:00 |
| 23:00 | 2:30 | 5:00 | 0:00 | 22:00 | 17:00 |
Central European Time
Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City
Principal Cities: The largest city in the CET timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Algiers
German: MEZ - Mitteleuropäische Zeit
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central European Summer Time (CEST).
End: Central European Time (CET) has ended on Sunday, March 31, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 31, 2024, 3:00 am local daylight time instead. Standard time ends annually the on last Sunday of March.
Start: Central European Time (CET) starts on Sunday, October 27, 2024 at 3:00 am local time and clocks are set one hour back to Sunday, October 27, 2024, 2:00 am. Standard time starts annually the on last Sunday of October.
CET representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +01 - basic short
- +0100 - basic
- +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates one hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Alpha - Military abbreviation for CET
- A - short form of 'Alpha'
IANA/Olson: Reflects CET time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Africa/Algiers
- Africa/Ceuta
- Africa/Tunis
- Arctic/Longyearbyen
- Atlantic/Jan_Mayen
- CET
- Europe/Amsterdam
- Europe/Andorra
- Europe/Belgrade
- Europe/Berlin
- Europe/Bratislava
- Europe/Brussels
- Europe/Budapest
- Europe/Busingen
- Europe/Copenhagen
- Europe/Gibraltar
- Europe/Ljubljana
- Europe/Luxembourg
- Europe/Madrid
- Europe/Malta
- Europe/Monaco
- Europe/Oslo
- Europe/Paris
- Europe/Podgorica
- Europe/Prague
- Europe/Rome
- Europe/San_Marino
- Europe/Sarajevo
- Europe/Skopje
- Europe/Stockholm
- Europe/Tirane
- Europe/Vaduz
- Europe/Vatican
- Europe/Vienna
- Europe/Warsaw
- Europe/Zagreb
- Europe/Zurich
- Poland
Time zones with the GMT +1 offset:
- 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
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
Singapore Time
Offset: SGT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia
SGT representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +08 - basic short
- +0800 - basic
- +08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Hotel - Military abbreviation for SGT
- H - short form of 'Hotel'
SGT Abbreviation: Several time zones share SGT abbreviation and it could refer to these time zones
- Singapore Time - UTC +8
- South Georgia Time - UTC -2
Time zones with the GMT +8 offset:
- 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
Athens Information
Time Zone
Abbreviation / Name
EEST - Eastern European Summer Time
EET - Eastern European Time
UTC / GMT Offset
+3:00 hours during Eastern European Summer Time, currently in use.
+2:00 hours during Eastern European Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Sunday, March 31, 2024 at 3:00 am local time. DST starts annually the on last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 31, 2024, 4:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Sunday, October 27, 2024 at 4:00 am local time. DST ends annually the on last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 27, 2024, 3:00 am local standard time instead. Also called Fall Back or switch to Winter Time.
Athens Facts
Country
Greece
Alternative Names
ATH, Afina, Afini, Afiny, An Aithin, Ateena, Atehny, Aten, Atena, Atenai, Atenas, Atenas - Athena, Atenas - Αθήνα, Atene, Atenes, Ateni, Ateno, Atenoj, Ateny, Athen, Athena, Athenae, Athenai, Athene, Athenes, Athens, Atheny, Athina, Athinai, Athinia, Athènes, Athén, Athénes, Athény, Athína, Athínai, Atina, Atény, Atēnas, Atėnai, Aþena, Kota Athena, Lungsod ng Athina, Lungsod ng Athína, atene, atene si, ateni, athensa, athyna, atn, etens, xethens, ya dian, Αθήνα, Αθήναι, Αθηνα, Αθηναι, Атина, Атэны, Афины, Афіни, Аѳины, Աթենք, אתונה, آتن, أثينا, ئافېنا, ܐܬܝܢܐ, अथेन्स, ஏதென்ஸ், เอเธนส์, ათენი, Ἀθῆναι, アテネ, 雅典, 아테네, 아테네 시
Population
664,046
Currency
Euro (EUR)
Geographic Coordinates
37° 59' N Latitude / 23° 43' E Longitude
International Dialing Code
+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
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
Principal Cities: The largest city in the EST timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are 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, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Eastern Daylight Time (EDT).
End: Eastern Standard Time (EST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Eastern Standard Time (EST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
EST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -05 - basic short
- -0500 - basic
- -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates five hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- 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
Time zones with the GMT -5 offset:
- 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
EST to IST GMT to EST PST to EST EST to GMT PST to GMT
