Altadena to Montreal time converter

Montreal is 3 hours ahead of Altadena. When it is 9:00 AM in Altadena, it is 12:00 PM in Montreal.

Altadena PDT

Tuesday, October 20, 2026

Montreal EDT

Tuesday, October 20, 2026

Altadena
California, United States
Tue, Oct 20
PDTUTC-7
Montreal
Quebec, Canada
Tue, Oct 20
EDTUTC-4+3h
Finding your time zone…
Shared working hours (9:00–18:00)

Altadena to Montreal conversion table

Every hour of today in Altadena and the matching time in Montreal. Light rows are typical working hours (9:00–18:00).

AltadenaMontreal
12:00 AM3:00 AM
1:00 AM4:00 AM
2:00 AM5:00 AM
3:00 AM6:00 AM
4:00 AM7:00 AM
5:00 AM8:00 AM
6:00 AM9:00 AM
7:00 AM10:00 AM
8:00 AM11:00 AM
9:00 AM12:00 PM
10:00 AM1:00 PM
11:00 AM2:00 PM
12:00 PM3:00 PM
1:00 PM4:00 PM
2:00 PM5:00 PM
3:00 PM6:00 PM
4:00 PM7:00 PM
5:00 PM8:00 PM
6:00 PM9:00 PM
7:00 PM10:00 PM
8:00 PM11:00 PM
9:00 PM12:00 AM+1 day
10:00 PM1:00 AM+1 day
11:00 PM2:00 AM+1 day

Best time to call or meet

Both sides are at work from 9:00 AM – 3:00 PM in Altadena (12:00 PM – 6:00 PM in Montreal).

Daylight saving time and the difference

The difference changes during the year because Altadena and Montreal switch clocks on different dates:

  • Oct 20, 2026 – Oct 31, 2026: +3h
  • Oct 31, 2026 – Nov 1, 2026: +2h
  • Nov 1, 2026 – Mar 13, 2027: +3h
  • Mar 13, 2027 – Mar 14, 2027: +4h
  • Mar 14, 2027 – Oct 20, 2027: +3h

Distance

Altadena and Montreal are 3,949 km (2,454 miles) apart in a straight line.

More conversions

Montreal to AltadenaAltadena to New YorkAltadena to LondonAltadena to Los AngelesAltadena to ChicagoAltadena to TorontoAltadena to São PauloAltadena to ParisAltadena to BerlinAltadena to MoscowAltadena to DubaiAltadena to New DelhiAltadena to Bangkok
New York to MontrealLondon to MontrealLos Angeles to MontrealChicago to MontrealToronto to MontrealSão Paulo to MontrealParis to MontrealBerlin to MontrealMoscow to MontrealDubai to MontrealNew Delhi to MontrealBangkok to Montreal

Questions and answers

What is the time difference between Altadena and Montreal?

Montreal is 3 hours ahead of Altadena.

What time is it in Montreal when it is 9 AM in Altadena?

When it is 9:00 AM in Altadena, it is 12:00 PM in Montreal.

When is the best time to call Montreal from Altadena?

Both sides are at work from 9:00 AM – 3:00 PM in Altadena (12:00 PM – 6:00 PM in Montreal).

Does the time difference between Altadena and Montreal change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.