PET to ADT Converter
Quick answers
Selected conversion
7:00 am07:00 PET (UTC-5), Oct 10, 2026 = 9:00 am09:00 ADT (UTC-3), Oct 10, 2026
PET is 2 hours behind ADT.
PET and ADT examples
These examples always use PET (UTC-5) and ADT (UTC-3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
PET is 2 hours behind ADT.
How the time difference changes
For most of the year, PET is 2 hours behind ADT. At other times of the year, PET is 1 hour behind AST.
For most of the year, working hours of 9:00 am to 5:00 pm in PET correspond to 11:00 am to 7:00 pm in ADT. At other times of the year, working hours of 9:00 am to 5:00 pm in PET correspond to 10:00 am to 6:00 pm in AST.For most of the year, working hours of 09:00 to 17:00 in PET correspond to 11:00 to 19:00 in ADT. At other times of the year, working hours of 09:00 to 17:00 in PET correspond to 10:00 to 18:00 in AST.
Compare PET time with ADT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Peru Time is 2 hours behind Atlantic Daylight Time.
7:00 am07:00 in PET is 9:00 am09:00 in ADT
PET to ADT call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in PET which corresponds to 11am-5pm11:00-17:00 in ADT
7:00 am07:00 Peru Time (PET). Offset UTC -5:00 hours
9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
7:00 am07:00 PET / 9:00 am09:00 ADT
| PET | ADT |
|---|---|
| 12:00am | 2:00am |
| 1:00am | 3:00am |
| 2:00am | 4:00am |
| 3:00am | 5:00am |
| 4:00am | 6:00am |
| 5:00am | 7:00am |
| 6:00am | 8:00am |
| 7:00am | 9:00am |
| 8:00am | 10:00am |
| 9:00am | 11:00am |
| 10:00am | 12:00pm |
| 11:00am | 1:00pm |
| 12:00pm | 2:00pm |
| 1:00pm | 3:00pm |
| 2:00pm | 4:00pm |
| 3:00pm | 5:00pm |
| 4:00pm | 6:00pm |
| 5:00pm | 7:00pm |
| 6:00pm | 8:00pm |
| 7:00pm | 9:00pm |
| 8:00pm | 10:00pm |
| 9:00pm | 11:00pm |
| 10:00pm | 12:00am |
| 11:00pm | 1:00am |
| 00:00 | 02:00 |
| 01:00 | 03:00 |
| 02:00 | 04:00 |
| 03:00 | 05:00 |
| 04:00 | 06:00 |
| 05:00 | 07:00 |
| 06:00 | 08:00 |
| 07:00 | 09:00 |
| 08:00 | 10:00 |
| 09:00 | 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 | 00:00 |
| 23:00 | 01:00 |
Peru Time
Offset: PET is 5 hours behind Greenwich Mean Time (GMT) and is used in South America
Countries using this time zone: Peru
Principal Cities: The largest city in the PET time zone is Lima in Peru, with about 7.737 million people. Other major cities in this time zone include Callao, Arequipa, Trujillo, La Mochica baja.
Daylight Saving: Clocks in Peru Time (PET) do not change for daylight saving time, so PET stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

PET 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 PET
- R - short form of 'Romeo'
- 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 using this time zone: Bermuda, Canada, Greenland
Principal Cities: The largest city in the ADT time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Dartmouth, Moncton, Saint John.
French: HAA - Heure Avancée de l'Atlantique

Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Atlantic Standard Time (AST).
Start: Atlantic Daylight Time (ADT) 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: Atlantic Daylight Time (ADT) 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.
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 an offset of three hours 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
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasília 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
