IST to CEST to UTC to EDT to PDT
Time Difference
India Standard Time is 3 hours and 30 minutes ahead of Central European Summer Time and 5 hours and 30 minutes ahead of Universal Time Coordinated and 9 hours and 30 minutes ahead of Eastern Daylight Time and 12 hours and 30 minutes ahead of Pacific Daylight Time
9:00 pm21:00 in IST is 5:30 pm17:30 in CEST and is 3:30 pm15:30 in UTC and is 11:30 am11:30 in EDT and is 8:30 am08:30 in PDT
IST to CEST call time
Best time for a conference call or a meeting is between 11:30am-6pm in IST which corresponds to 8am-2:30pm in CEST
IST to UTC call time
Best time for a conference call or a meeting is between 1:30pm-6pm in IST which corresponds to 8am-12:30pm in UTC
IST to EDT call time
Best time for a conference call or a meeting is between 5:30pm-7:30pm in IST which corresponds to 8am-10am in EDT
IST to PDT call time
Best time for a conference call or a meeting is between 7pm-9pm in IST which corresponds to 6:30am-8:30am in PDT
9:00 pm21:00 India Standard Time (IST). Offset UTC +5:30 hours
5:30 pm17:30 Central European Summer Time (CEST). Offset UTC +2:00 hours
3:30 pm15:30 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
11:30 am11:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
8:30 am08:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
9:00 pm21:00 IST / 5:30 pm17:30 CEST / 3:30 pm15:30 UTC / 11:30 am11:30 EDT / 8:30 am08:30 PDT
| IST | CEST | UTC | EDT | PDT |
|---|---|---|---|---|
| 12am (midnight) | 8:30 pm | 6:30 pm | 2:30 pm | 11:30 am |
| 1am | 9:30 pm | 7:30 pm | 3:30 pm | 12:30 pm |
| 2am | 10:30 pm | 8:30 pm | 4:30 pm | 1:30 pm |
| 3am | 11:30 pm | 9:30 pm | 5:30 pm | 2:30 pm |
| 4am | 12:30 am | 10:30 pm | 6:30 pm | 3:30 pm |
| 5am | 1:30 am | 11:30 pm | 7:30 pm | 4:30 pm |
| 6am | 2:30 am | 12:30 am | 8:30 pm | 5:30 pm |
| 7am | 3:30 am | 1:30 am | 9:30 pm | 6:30 pm |
| 8am | 4:30 am | 2:30 am | 10:30 pm | 7:30 pm |
| 9am | 5:30 am | 3:30 am | 11:30 pm | 8:30 pm |
| 10am | 6:30 am | 4:30 am | 12:30 am | 9:30 pm |
| 11am | 7:30 am | 5:30 am | 1:30 am | 10:30 pm |
| 12pm (noon) | 8:30 am | 6:30 am | 2:30 am | 11:30 pm |
| 1pm | 9:30 am | 7:30 am | 3:30 am | 12:30 am |
| 2pm | 10:30 am | 8:30 am | 4:30 am | 1:30 am |
| 3pm | 11:30 am | 9:30 am | 5:30 am | 2:30 am |
| 4pm | 12:30 pm | 10:30 am | 6:30 am | 3:30 am |
| 5pm | 1:30 pm | 11:30 am | 7:30 am | 4:30 am |
| 6pm | 2:30 pm | 12:30 pm | 8:30 am | 5:30 am |
| 7pm | 3:30 pm | 1:30 pm | 9:30 am | 6:30 am |
| 8pm | 4:30 pm | 2:30 pm | 10:30 am | 7:30 am |
| 9pm | 5:30 pm | 3:30 pm | 11:30 am | 8:30 am |
| 10pm | 6:30 pm | 4:30 pm | 12:30 pm | 9:30 am |
| 11pm | 7:30 pm | 5:30 pm | 1:30 pm | 10:30 am |
| 0:00 | 20:30 | 18:30 | 14:30 | 11:30 |
| 1:00 | 21:30 | 19:30 | 15:30 | 12:30 |
| 2:00 | 22:30 | 20:30 | 16:30 | 13:30 |
| 3:00 | 23:30 | 21:30 | 17:30 | 14:30 |
| 4:00 | 0:30 | 22:30 | 18:30 | 15:30 |
| 5:00 | 1:30 | 23:30 | 19:30 | 16:30 |
| 6:00 | 2:30 | 0:30 | 20:30 | 17:30 |
| 7:00 | 3:30 | 1:30 | 21:30 | 18:30 |
| 8:00 | 4:30 | 2:30 | 22:30 | 19:30 |
| 9:00 | 5:30 | 3:30 | 23:30 | 20:30 |
| 10:00 | 6:30 | 4:30 | 0:30 | 21:30 |
| 11:00 | 7:30 | 5:30 | 1:30 | 22:30 |
| 12:00 | 8:30 | 6:30 | 2:30 | 23:30 |
| 13:00 | 9:30 | 7:30 | 3:30 | 0:30 |
| 14:00 | 10:30 | 8:30 | 4:30 | 1:30 |
| 15:00 | 11:30 | 9:30 | 5:30 | 2:30 |
| 16:00 | 12:30 | 10:30 | 6:30 | 3:30 |
| 17:00 | 13:30 | 11:30 | 7:30 | 4:30 |
| 18:00 | 14:30 | 12:30 | 8:30 | 5:30 |
| 19:00 | 15:30 | 13:30 | 9:30 | 6:30 |
| 20:00 | 16:30 | 14:30 | 10:30 | 7:30 |
| 21:00 | 17:30 | 15:30 | 11:30 | 8:30 |
| 22:00 | 18:30 | 16:30 | 12:30 | 9:30 |
| 23:00 | 19:30 | 17:30 | 13:30 | 10:30 |
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
- +0530 - basic
- +05:30 - extended
- +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.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
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
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).
Start: Central European Summer Time (CEST) started on Sunday, March 30, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 30, 2025, 3:00 am. Daylight saving starts annually the on last Sunday of March
End: Central European Summer Time (CEST) ends on Sunday, October 26, 2025 at 3:00 am local time and clocks are set one hour back to Sunday, October 26, 2025, 2:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
CEST representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +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.
- Bravo - Military abbreviation for CEST
- B - short form of 'Bravo'
- 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
- MET
- Poland
- 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
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +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.
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- 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
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT 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: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Eastern Standard Time (EST).
Start: Eastern Daylight Time (EDT) started on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Eastern Daylight Time (EDT) ends on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- 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/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the PDT timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Pacific Standard Time (PST).
Start: Pacific Daylight Time (PDT) started on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Pacific Daylight Time (PDT) ends on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
PDT representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates seven hour and zero minutes time differences to the west of the zero meridian.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone