How can we improve WHMCS?

We have recently started using the Auto Terminate/Fixed Term feature within WHMCS however have hit a slight issue. When a client signs up WHMCS does not record the time that the client signed up for the auto terminate/fixed term product being ordered. So the client could order the product at 11:59pm on the 1st of a month but the service would be terminated when our cron runs at 8am, however because it records the day it was ordered not the time, the service would terminate at 8am on the 3rd rather than 11:59pm on the 3rd, effectively cutting short the fixed term by 16 hours.