CDT to ADT Converter
Time Difference
Central Daylight Time is 2 hours behind Atlantic Daylight Time
8:00 am08:00 in CDT is 10:00 am10:00 in ADT
CDT to ADT call time
Best time for a conference call or a meeting is between 8am-4pm in CDT which corresponds to 10am-6pm in ADT
8:00 am08:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
10:00 am10:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
8:00 am08:00 CDT / 10:00 am10:00 ADT
| CDT | ADT |
|---|---|
| 12am (midnight) | 2am |
| 1am | 3am |
| 2am | 4am |
| 3am | 5am |
| 4am | 6am |
| 5am | 7am |
| 6am | 8am |
| 7am | 9am |
| 8am | 10am |
| 9am | 11am |
| 10am | 12pm (noon) |
| 11am | 1pm |
| 12pm (noon) | 2pm |
| 1pm | 3pm |
| 2pm | 4pm |
| 3pm | 5pm |
| 4pm | 6pm |
| 5pm | 7pm |
| 6pm | 8pm |
| 7pm | 9pm |
| 8pm | 10pm |
| 9pm | 11pm |
| 10pm | 12am (midnight) |
| 11pm | 1am |
| 0:00 | 2:00 |
| 1:00 | 3:00 |
| 2:00 | 4:00 |
| 3:00 | 5:00 |
| 4:00 | 6:00 |
| 5:00 | 7:00 |
| 6:00 | 8:00 |
| 7:00 | 9:00 |
| 8:00 | 10:00 |
| 9:00 | 11:00 |
| 10:00 | 12:00 |
| 11:00 | 13:00 |
| 12:00 | 14:00 |
| 13:00 | 15:00 |
| 14:00 | 16:00 |
| 15:00 | 17:00 |
| 16:00 | 18:00 |
| 17:00 | 19:00 |
| 18:00 | 20:00 |
| 19:00 | 21:00 |
| 20:00 | 22:00 |
| 21:00 | 23:00 |
| 22:00 | 0:00 |
| 23:00 | 1:00 |
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 timezone, however during winter some places switch clocks for one hour back and observe Central Standard Time (CST).
Start: Central Daylight Time (CDT) 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: Central Daylight Time (CDT) 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
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
Atlantic Daylight Time
Offset: ADT is 3 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bermuda, Canada, Greenland
Principal Cities: The largest city in the ADT timezone is Halifax from Canada with population about 359,111 people. Other major cities in the area are Sydney, Dartmouth, Saint John, Moncton
French: HAA - Heure Avancée de l'Atlantique
Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Atlantic Standard Time (AST).
Start: Atlantic Daylight Time (ADT) 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: Atlantic Daylight Time (ADT) 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
ADT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates three hour and zero minutes time differences to the west of the zero meridian.
- Papa - Military abbreviation for ADT
- P - short form of 'Papa'
- America/Glace_Bay
- America/Goose_Bay
- America/Halifax
- America/Moncton
- America/Thule
- Atlantic/Bermuda
- Canada/Atlantic
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- WGT - West Greenland Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - BrasÃlia time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- SRT - Suriname Time
- UYT - Uruguay Time