I had to do this and I came up with two solutions:
1. Create multiple saved searches that were the exact same and trigger daily, but just different times
2. Create a scheduled script that runs the saved search and e-mails appropriately and set the deployment to whatever time you want
I found that 1 was way more time-consuming to set up and manage, but 2 had some issues with formatting - i.e. displayed quotes, backslaches, other stuff in a weird way. Ultimately, I think it's better to script