Corrections

The Executor on the instructions of the Customer undertakes to hold cultural event for the production of 15 seconds promotional video and placing it on TV Channel according to the promotional video's schedule in the Exhibit No.1, which is an integral part of the present contract, in the following amounts: 228 broadcast of 15 seconds promotional video from March 25 to April 14, 2015 years.

The performance period from March 25, 2013 to April 14, 2015.

Duration of the Contract from March 15, 2013 to April 30, 2015.

как лучше перевести срок выполнения работы и срок действия контракта?

заранее спасибо!