iRule to redirect traffic to a specific url/uri at certain time of the day in a week

Hi,

I need some help in creating an iRule to forward all the traffic to a specified url/uri at certain time of a day in a week. The traffic should pass normally except that time of the day. For ex. from 4 am to 5 am on any Sunday all the traffic coming to a VS should be redirected to /someuri or http://somewebsite.com. During all other times the traffic should pass normally. Is this possible using an iRule? Appreciate your help on this.