How to design interface for backups that users can restore to

I am currently working on a system for our application where users can restore to backups done previously. The current setup is that the system backups everyday when automatic backups are on. Now our users can also restore to a backup done previously at a given time such a differential backups. How to create an easy to use UI for the Application so that they can restore to these previous backups done throughout the day if needed?

My initial approach was a particular day and underneath the date, a slider that can be used to restore to? Keeping in mind that our users are 40+ years**+** old.