Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

PET to MDT

-1h

PET

PETSOURCE

UTC-05:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

MDT

UTC-06:00☀ DST active

HH11

MM00

11:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

PET

MDT

12:00 AM

11:00 PM-1

2:00 AM

1:00 AM

4:00 AM

3:00 AM

6:00 AM

5:00 AM

8:00 AM

7:00 AM

10:00 AM

9:00 AM

12:00 PM

11:00 AM

2:00 PM

1:00 PM

4:00 PM

3:00 PM

6:00 PM

5:00 PM

8:00 PM

7:00 PM

10:00 PM

9:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

PET and MDT on the World Map

The map below highlights the PET (Peru Time) and MDT (Mountain Daylight Time) timezone regions across the globe.

PET Zone

→

MDT Zone

Explore all world timezones interactively →

PET – Peru Time

UTC-05:00

Peru Time (PET) is the standard time for Peru, 5 hours behind UTC.

Countries in PET

Peru

Major Cities in PET

LimaArequipaTrujilloCuscoCallao

Key Facts about PET

•Peru does not observe daylight saving time.
•PET is the same offset as EST (UTC-05:00).
•Lima is the 5th largest city in the Americas.

Daylight Saving:No – UTC-05:00 year-round

Learn more about PET on Wikipedia

MDT – Mountain Daylight Time

UTC-06:00

Mountain Daylight Time (MDT) is the daylight saving offset in the Mountain Time Zone, 6 hours behind UTC.

Countries in MDT

United States (Mountain)Canada (Alberta)

Major Cities in MDT

DenverCalgaryEdmontonSalt Lake CityBoise

Key Facts about MDT

•MDT shares the same offset as CST (UTC-06:00).
•Arizona does not switch to MDT, remaining on MST.

Daylight Saving:Yes – switches to MST

Learn more about MDT on Wikipedia

Time Conversion Guide: PET to MDT

PET runs on Peru Time (PET) at UTC-05:00. MDT runs on Mountain Daylight Time (MDT) at UTC-06:00. That puts PET 1 hour behind MDT — a difference of -1h at the current offsets.

In practice, when it is 9:00 AM in PET it is 8:00 AM in MDT. Midnight in PET is 11:00 PM in MDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

PET to MDT time conversion table

PET (PET)	MDT (MDT)	Day
12:00 AM	11:00 PM	previous day
6:00 AM	5:00 AM	same day
7:00 AM	6:00 AM	same day
8:00 AM	7:00 AM	same day
9:00 AM	8:00 AM	same day
12:00 PM	11:00 AM	same day
3:00 PM	2:00 PM	same day
5:00 PM	4:00 PM	same day
6:00 PM	5:00 PM	same day
9:00 PM	8:00 PM	same day

Why people convert PET to MDT time

Scheduling a call from PET to MDT: a 10:00 AM start in PET lands at 9:00 AM in MDT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both PET and MDT are inside the 9-to-5 working day between 10:00 AM and 5:00 PM PET time (9:00 AM–4:00 PM MDT). That is roughly 7 hours of usable overlap.
Watching a live event or market open: PET viewers need 8:00 AM in MDT to catch a 9:00 AM start there, and 1:00 AM if the event is anchored to PET.

Always state the zone abbreviation, not just the hour. "3:00 PM PET" is unambiguous; "3 PM" across a -1h gap is not.
Block 10:00 AM–5:00 PM PET as the recurring meeting window if you work primarily from PET and need MDT colleagues present.

About PET (Peru Time)

Peru Time (PET) is the time zone used throughout Peru. Peru does not observe daylight saving time. PET shares the same offset as EST (UTC-05:00). Lima, the capital, is the economic center of Peru.

About MDT (Mountain Daylight Time)

Mountain Daylight Time (MDT) is observed during summer months in the Mountain Time Zone, except in Arizona which stays on MST year-round. MDT aligns with Central Standard Time (CST) at UTC-06:00.

Best time to call between PET and MDT

Both PET and MDT sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM PET, which is 9:00 AM–4:00 PM MDT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

PET and MDT share 7 hours of working-hours overlap (10:00 AM–5:00 PM PET), so scheduling a live meeting is straightforward.

PET is 1 hour behind MDT (PET UTC-05:00 → MDT UTC-06:00). The shared working window is 10:00 AM–5:00 PM PET. Remember to re-check around daylight-saving transitions.