ET to PET Time Converter
PET is 1 hour behind ET. The US East Coast is currently on EDT (UTC-4:00), and PET is UTC-5:00.
Best Time to Call Between ET and PET
Both zones are inside normal business hours between 10:00 AM and 5:00 PM ET — that's 9:00 AM to 4:00 PM PET. That's a 7-hour window.
both at work ET only PET only neither — hours along the strip are ET.
Common Times Converted
ET on the left, PET on the right.
ET to PET: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| ET | PET | Working hours |
|---|---|---|
| 12:00 AM | 11:00 PM prev day | — |
| 1:00 AM | 12:00 AM | — |
| 2:00 AM | 1:00 AM | — |
| 3:00 AM | 2:00 AM | — |
| 4:00 AM | 3:00 AM | — |
| 5:00 AM | 4:00 AM | — |
| 6:00 AM | 5:00 AM | — |
| 7:00 AM | 6:00 AM | — |
| 8:00 AM | 7:00 AM | — |
| 9:00 AM | 8:00 AM | ET only |
| 10:00 AM | 9:00 AM | Both zones |
| 11:00 AM | 10:00 AM | Both zones |
| 12:00 PM | 11:00 AM | Both zones |
| 1:00 PM | 12:00 PM | Both zones |
| 2:00 PM | 1:00 PM | Both zones |
| 3:00 PM | 2:00 PM | Both zones |
| 4:00 PM | 3:00 PM | Both zones |
| 5:00 PM | 4:00 PM | PET only |
| 6:00 PM | 5:00 PM | — |
| 7:00 PM | 6:00 PM | — |
| 8:00 PM | 7:00 PM | — |
| 9:00 PM | 8:00 PM | — |
| 10:00 PM | 9:00 PM | — |
| 11:00 PM | 10:00 PM | — |
What ET and PET Actually Are
ET — Eastern Time
New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to EST.
Eastern Time covers roughly half the US population and, because of that, is the zone most American business defaults to when nobody specifies one.
PET — Peru Time
Lima, Arequipa, Trujillo. Standing at UTC-5:00 as written, and the region does not change its clocks, so that offset holds all year.
Peru sits at UTC-5 year-round despite spanning longitudes that would suggest otherwise, and has not used daylight saving since a short trial in the 1990s.
What This Means in Practice
This gap is not fixed
ET changes its clocks and PET does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Close enough to share a working day
At only 1 hour apart, the two working days overlap almost completely. Scheduling is barely constrained by the difference.
Major Cities in Each Zone
Cities on ET
Cities on PET
Frequently Asked Questions
What is the time difference between ET and PET?
PET is 1 hour behind ET. That is the live figure. Taken strictly as written, the gap between ET and PET is — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM ET in PET?
9:00 AM ET is 8:00 AM PET.
What are the best hours to schedule a call between ET and PET?
Between 10:00 AM and 5:00 PM ET, which is 9:00 AM to 4:00 PM PET. Both sides are inside normal business hours through that window.
Does the difference between ET and PET change during the year?
Yes. ET observes daylight saving and PET does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.