CDT to EST to IST Time Converter
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Quick answers
Selected conversion
7:00 am07:00 CDT (UTC-5), Oct 18, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 18, 2026 = 5:30 pm17:30 IST (UTC+5:30), Oct 18, 2026
CDT is 1 hour behind EDT. CDT is 10 hours and 30 minutes behind IST.
How the time difference changes
CDT to EST
For most of the year, CDT is 1 hour behind EDT. From Nov 1, 2026 to Mar 14, 2027, CST is 1 hour behind EST. Briefly around clock changes, CDT and EST have the same time or CST is 2 hours behind EDT.
For most of the year, working hours of 9:00 am to 6:00 pm in CDT correspond to 10:00 am to 7:00 pm in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in CST correspond to 10:00 am to 7:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in CDT correspond to 10:00 to 19:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in CST correspond to 10:00 to 19:00 in EST.
CDT to IST
For most of the year, CDT is 10 hours and 30 minutes behind IST. From Nov 1, 2026 to Mar 14, 2027, CST is 11 hours and 30 minutes behind IST.
For most of the year, working hours of 9:00 am to 6:00 pm in CDT correspond to 7:30 pm to 4:30 am (next day) in IST. At other times of the year, working hours of 9:00 am to 6:00 pm in CST correspond to 8:30 pm to 5:30 am (next day) in IST.For most of the year, working hours of 09:00 to 18:00 in CDT correspond to 19:30 to 04:30 (next day) in IST. At other times of the year, working hours of 09:00 to 18:00 in CST correspond to 20:30 to 05:30 (next day) in IST.
Compare CDT time with EST and IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Central Daylight Time is 1 hour behind Eastern Daylight Time. Central Daylight Time is 10 hours and 30 minutes behind India Standard Time.
7:00 am07:00 in CDT is 8:00 am08:00 in EDT and is 5:30 pm17:30 in IST
CDT to EDT call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in CDT which corresponds to 10am-6pm10:00-18:00 in EDT
CDT to IST call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in CDT which corresponds to 6:30pm-7:30pm18:30-19:30 in IST. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
7:00 am07:00 CDT / 8:00 am08:00 EDT / 5:30 pm17:30 IST
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| CDT | EDT | IST |
|---|---|---|
| 1:00am | 10:30am | |
| 2:00am | 11:30am | |
| 3:00am | 12:30pm | |
| 4:00am | 1:30pm | |
| 5:00am | 2:30pm | |
| 6:00am | 3:30pm | |
| 7:00am | 4:30pm | |
| 8:00am | 5:30pm | |
| 9:00am | 6:30pm | |
| 10:00am | 7:30pm | |
| 11:00am | 8:30pm | |
| 12:00pm | 9:30pm | |
| 1:00pm | 10:30pm | |
| 2:00pm | 11:30pm | |
| 3:00pm | 12:30am next day | |
| 4:00pm | 1:30am next day | |
| 5:00pm | 2:30am next day | |
| 6:00pm | 3:30am next day | |
| 7:00pm | 4:30am next day | |
| 8:00pm | 5:30am next day | |
| 9:00pm | 6:30am next day | |
| 10:00pm | 7:30am next day | |
| 11:00pm | 8:30am next day | |
| 12:00am next day | 9:30am next day | |
| 01:00 | 10:30 | |
| 02:00 | 11:30 | |
| 03:00 | 12:30 | |
| 04:00 | 13:30 | |
| 05:00 | 14:30 | |
| 06:00 | 15:30 | |
| 07:00 | 16:30 | |
| 08:00 | 17:30 | |
| 09:00 | 18:30 | |
| 10:00 | 19:30 | |
| 11:00 | 20:30 | |
| 12:00 | 21:30 | |
| 13:00 | 22:30 | |
| 14:00 | 23:30 | |
| 15:00 | 00:30 next day | |
| 16:00 | 01:30 next day | |
| 17:00 | 02:30 next day | |
| 18:00 | 03:30 next day | |
| 19:00 | 04:30 next day | |
| 20:00 | 05:30 next day | |
| 21:00 | 06:30 next day | |
| 22:00 | 07:30 next day | |
| 23:00 | 08:30 next day | |
| 00:00 next day | 09:30 next day |
Central Daylight Time
Offset: CDT is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the CDT time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Dallas, Fort Worth.
French: HAC - Heure Avancée du Centre
Spanish: CT - Zona Centro
Today all shaded areas are on CDT.
Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Central Standard Time (CST).
Start: Central Daylight Time (CDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Central Daylight Time (CDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
See USA daylight saving time and upcoming clock changes worldwide.
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 an offset of five hours 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
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States
Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Today the lighter areas are on UTC−4 (EDT).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
End: Eastern Standard Time (EST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Eastern Standard Time (EST) starts on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
See USA daylight saving time and upcoming clock changes worldwide.
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 an offset of five hours 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 of Greenwich Mean Time (GMT).
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
Current time in India: India time now
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 an offset of five hours and thirty minutes 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