EST to IST to UTC to CDT
Time Difference
Eastern Standard Time is 10 hours and 30 minutes behind India Standard Time and 5 hours behind Universal Time Coordinated and 1 hour ahead of Central Standard Time
1:00 pm13:00 in EST is 11:30 pm23:30 in IST and is 6:00 pm18:00 in UTC and is 12:00 pm12:00 in CST
EST to IST call time
Best time for a conference call or a meeting is between 7:30am-9:30am in EST which corresponds to 6pm-8pm in IST
EST to UTC call time
Best time for a conference call or a meeting is between 8am-1pm in EST which corresponds to 1pm-6pm in UTC
EST to CDT call time
Best time for a conference call or a meeting is between 8am-6pm in EST which corresponds to 8am-6pm in CDT
1:00 pm13:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
11:30 pm23:30 India Standard Time (IST). Offset UTC +5:30 hours
6:00 pm18:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
12:00 pm12:00 Central Standard Time (CST). Offset UTC -6:00 hours
1:00 pm13:00 EST / 11:30 pm23:30 IST / 6:00 pm18:00 UTC / 12:00 pm12:00 CST
| EST | IST | UTC | CST |
|---|---|---|---|
| 12am (midnight) | 10:30 am | 5am | 11pm |
| 1am | 11:30 am | 6am | 12am (midnight) |
| 2am | 12:30 pm | 7am | 1am |
| 3am | 1:30 pm | 8am | 2am |
| 4am | 2:30 pm | 9am | 3am |
| 5am | 3:30 pm | 10am | 4am |
| 6am | 4:30 pm | 11am | 5am |
| 7am | 5:30 pm | 12pm (noon) | 6am |
| 8am | 6:30 pm | 1pm | 7am |
| 9am | 7:30 pm | 2pm | 8am |
| 10am | 8:30 pm | 3pm | 9am |
| 11am | 9:30 pm | 4pm | 10am |
| 12pm (noon) | 10:30 pm | 5pm | 11am |
| 1pm | 11:30 pm | 6pm | 12pm (noon) |
| 2pm | 12:30 am | 7pm | 1pm |
| 3pm | 1:30 am | 8pm | 2pm |
| 4pm | 2:30 am | 9pm | 3pm |
| 5pm | 3:30 am | 10pm | 4pm |
| 6pm | 4:30 am | 11pm | 5pm |
| 7pm | 5:30 am | 12am (midnight) | 6pm |
| 8pm | 6:30 am | 1am | 7pm |
| 9pm | 7:30 am | 2am | 8pm |
| 10pm | 8:30 am | 3am | 9pm |
| 11pm | 9:30 am | 4am | 10pm |
| 0:00 | 10:30 | 5:00 | 23:00 |
| 1:00 | 11:30 | 6:00 | 0:00 |
| 2:00 | 12:30 | 7:00 | 1:00 |
| 3:00 | 13:30 | 8:00 | 2:00 |
| 4:00 | 14:30 | 9:00 | 3:00 |
| 5:00 | 15:30 | 10:00 | 4:00 |
| 6:00 | 16:30 | 11:00 | 5:00 |
| 7:00 | 17:30 | 12:00 | 6:00 |
| 8:00 | 18:30 | 13:00 | 7:00 |
| 9:00 | 19:30 | 14:00 | 8:00 |
| 10:00 | 20:30 | 15:00 | 9:00 |
| 11:00 | 21:30 | 16:00 | 10:00 |
| 12:00 | 22:30 | 17:00 | 11:00 |
| 13:00 | 23:30 | 18:00 | 12:00 |
| 14:00 | 0:30 | 19:00 | 13:00 |
| 15:00 | 1:30 | 20:00 | 14:00 |
| 16:00 | 2:30 | 21:00 | 15:00 |
| 17:00 | 3:30 | 22:00 | 16:00 |
| 18:00 | 4:30 | 23:00 | 17:00 |
| 19:00 | 5:30 | 0:00 | 18:00 |
| 20:00 | 6:30 | 1:00 | 19:00 |
| 21:00 | 7:30 | 2:00 | 20:00 |
| 22:00 | 8:30 | 3:00 | 21:00 |
| 23:00 | 9:30 | 4:00 | 22:00 |
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 timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect 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 the on 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 starts annually the on 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 five hour and zero minutes time differences 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
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
- Irkutsk Standard Time - UTC +8
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
Central Daylight Time
Offset: CDT is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Cuba, Mexico, United States
Principal Cities: The largest city in the CDT timezone is Chicago from USA with population about 2.696 million people. Other major cities in the area are Havana, Houston, Ciudad Juarez, San Antonio
French: HAC - Heure Avancée du Centre
Spanish: CT - Zona Centro
Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer time zone, however during winter some places adjust time for one hour back and observe Central Standard Time (CST).
End: Central Daylight Time (CDT) has ended 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 local standard time instead. Daylight saving ends annually the on first Sunday of November
Start: Central Daylight Time (CDT) starts 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. Daylight saving starts annually the on second Sunday of March
CDT 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 five hour and zero minutes time differences to the west of the zero meridian.
- Romeo - Military abbreviation for CDT
- R - short form of 'Romeo'
- America/Chicago
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Matamoros
- America/Menominee
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Resolute
- America/Winnipeg
- CST6CDT
- Canada/Central
- US/Central
- US/Indiana-Starke
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- 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