How much notice do I have to give tenants?

Duration of Tenancy                                  Notice by Landlord

Less than 6 months                                          28 days

6 or more months but less than 1 year         35 days

1 year or more but less than 2 years             42 days

2 years or more but less than 3 years           56 days

3 years or more but less than 4 years           84 days

4 or more years                                                 112 days