CEST
Central European Summer Time
GMT +2
UTC
Universal Time Coordinated
GMT +0
IST
India Standard Time
GMT +5:30

Time Difference

Central European Summer Time is 2 hours ahead of Universal Time Coordinated and 3 hours and 30 minutes behind India Standard Time
5:00 pm17:00 in CEST is 3:00 pm15:00 in UTC and is 8:30 pm20:30 in IST

CEST to UTC call time
Best time for a conference call or a meeting is between 10am-6pm in CEST which corresponds to 8am-4pm in UTC
CEST to IST call time
Best time for a conference call or a meeting is between 8am-2:30pm in CEST which corresponds to 11:30am-6pm in IST

5:00 pm17:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
3:00 pm15:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
8:30 pm20:30 India Standard Time (IST). Offset UTC +5:30 hours

5:00 pm17:00 CEST / 3:00 pm15:00 UTC / 8:30 pm20:30 IST

CEST UTC IST
12am (midnight) 10pm 3:30 am
1am 11pm 4:30 am
2am 12am (midnight) 5:30 am
3am 1am 6:30 am
4am 2am 7:30 am
5am 3am 8:30 am
6am 4am 9:30 am
7am 5am 10:30 am
8am 6am 11:30 am
9am 7am 12:30 pm
10am 8am 1:30 pm
11am 9am 2:30 pm
12pm (noon) 10am 3:30 pm
1pm 11am 4:30 pm
2pm 12pm (noon) 5:30 pm
3pm 1pm 6:30 pm
4pm 2pm 7:30 pm
5pm 3pm 8:30 pm
6pm 4pm 9:30 pm
7pm 5pm 10:30 pm
8pm 6pm 11:30 pm
9pm 7pm 12:30 am
10pm 8pm 1:30 am
11pm 9pm 2:30 am
0:00 22:00 3:30
1:00 23:00 4:30
2:00 0:00 5:30
3:00 1:00 6:30
4:00 2:00 7:30
5:00 3:00 8:30
6:00 4:00 9:30
7:00 5:00 10:30
8:00 6:00 11:30
9:00 7:00 12:30
10:00 8:00 13:30
11:00 9:00 14:30
12:00 10:00 15:30
13:00 11:00 16:30
14:00 12:00 17:30
15:00 13:00 18:30
16:00 14:00 19:30
17:00 15:00 20:30
18:00 16:00 21:30
19:00 17:00 22:30
20:00 18:00 23:30
21:00 19:00 0:30
22:00 20:00 1:30
23:00 21:00 2:30

Central European Summer Time

Offset: CEST is 2 hours 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, 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, Vatican City

Principal Cities: The largest city in the CEST timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Budapest

German: MESZ - Mitteleuropäische Sommerzeit

CEST Time Zone Geo Map
CEST timezone map

Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Central European Time (CET).

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Central European Summer Time (CEST) started 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. Daylight saving starts annually the on last Sunday of March

Daylight saving time clock moves back for one hour from 3am to 2amEnd: Central European Summer Time (CEST) ends 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 local standard time instead. Daylight saving ends annually the on last Sunday of October

CEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates two 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
  • Bravo - Military abbreviation for CEST
  • B - short form of 'Bravo'
IANA/Olson: Reflects CEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Ceuta
  • 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 +2 offset:
  • CEST - Central European Summer Time
  • EET - Eastern European Time
  • MESZ - Mitteleuropäische Sommerzeit
  • B - Bravo Time Zone
  • CAT - Central Africa Time
  • IST - Israel Standard Time
  • SAST - South Africa Standard Time
  • WAST - West Africa Summer Time

Universal Time Coordinated

Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal

Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.

UTC 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 UTC
  • Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • UCT
  • UTC
  • Universal
  • Zulu
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 Time Zone Geo Map
IST timezone map

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