Where an insurance is expressed to cover the period from one particular day to another, the insurance expires at midnight on the last day unless otherwise stated. However, a policy may not run its course for the following reasons: (a) payment of the full sum under the policy discharges it; (b) agreement between the parties; (c) termination by the insured in the case of permanent contracts (life and income protection), normally by non-payment of the premium; (d) withdrawal from contract during the cooling-off period; (e) determination for breach of condition or warranty.