No, the landlord is entitled to receive the proper amount of rent paid by the tenant at the proper place and time.
The lease agreement will note the rent due date. Most lease agreements state the rent is due and payable in full, free from deductions on or before the 1st of each and every month. The tenant would then be in breach of contract if the rent was still outstanding on the 2nd of the month.
The lease agreement will determine the payment date ? a tenant and landlord might negotiate that the rent is paid on the 15th of the month. If so, the tenant's rent only becomes due on the 15th and if not paid on the 16th ? the tenant is in breach of contract.
There is no law which provides the tenant a 7 day grace period to pay their rent.