P ART 3 M ISCELLANEOUS PROVISION RELATING TO START , END OR LENGTH OF LEASE 20 Default duration and date of entry 26 Duration of lease and date of entry in absence of agreement (1) This section applies where the tenant under a lease to which this Act applies has entered into possession of the subjects of the lease. (2) Where the lease does not provide for the period of the lease (expressly or by implication), 25 or any period so provided for cannot be established, that period is one year beginning with the date of entry under the lease. (3) Subsections (4) and (5) apply where the lease does not provide for the date of entry (expressly or by implication) or any date so provided for cannot be established. (4) The date of entry under the lease is to be treated as if it were— 30 (a) the date on which the tenant entered into possession of the subjects of the lease, (b) if that date cannot be established, the date on which the lease was granted, or (c) if that date cannot be established, 28 May in the earliest year in respect of which rent was paid under the lease. (5) A party to the lease may apply to the sheriff to determine the date of entry under the 35 lease. (6) Where, in any proceedings before a court or tribunal (whether under subsection (5) or otherwise), the court or tribunal determines the date of entry under the lease, the court or tribunal may order that the lease is to be endorsed with the date of entry. 18 Leases (Automatic Continuation etc.)