Scheduling mass email distrubutions

Hi everyone,

I want to schedule future email distributions to be sent out on a series of set times and dates.
I was wondering if there was a way to schedule mass email distributions set at custom times in the future. I have 2 different surveys that need to be distributed once a day for 7 days, and since there are many participants, it would take too long (and too much room for error) to schedule emails manually for each person. Ideally, there would be one button to press that schedules these out:

I want the FIRST SURVEY email distributions scheduled on:
* Every day, starting 1 day later at 5am for the next 7 days

I want the SECOND SURVEY email distributions scheduled on:
* Every day, starting 1 day later at 7pm for the next 7 days

If anyone knows how to do this, and could point me in the right direction to implementing it, that would be much appreciated.

Thanks.