Sep 14
- All Day
- Firefighters' National Memorial Day
- The Feast of the Cross
Sep 15
- All Day
- International Day of Democracy
- National Payroll Week
Sep 16
- All Day
- IT Professionals Day
Sep 19
- All Day
- Powley Day
Sep 21
- All Day
- International Day of Peace
Sep 22
- All Day
- Fall Equinox/Mabon
- International Week of Deaf People
- Navratri
- Rosh Hashanah
- Truth and Reconciliation Week
Sep 23
- All Day
- Bi Visibility Day
- International Sign Language Day
Sep 24
- All Day
- Rowan’s Law Day
Sep 25
- All Day
- Franco-Ontarian Day
Sep 28
- All Day
- Durga Puja
- Police and Peace Officers' National Memorial Day
Sep 30
- All Day
- National Day for Truth and Reconciliation
- Orange Shirt Day
