Condition record for days calculation

Hi Expert

there is a new Requirement in process

if Materiel will be delivered in certain days within  validity period of Contract , No  condition type (penalty) will be fall

if Materiel will be delivered after certain days within validity  period  of contract , a condition type will be fall

Example

Validity period is

01.02.2014 to 10.02.2014         for 10 days

if Materiel delivered  between 01.02.2014 to 07.02.2014 , no condition type (penalty)  will be fall in billing

if Materiel delivered  between 08.02.2014 to 10.02.2014 , a condition type (penalty)  will be fall in billing by condition record

Thanks in advance