All Day Events + Day Of Reminders

I am starting to host 5-day challenges inside of my community. To increase engagement, I'm adding daily "events". For challenges that don't have a live component, I'd like to have the time be "all day", in which case it would be nice to have reminder options for "day of". If my event essentially goes midnight to midnight each day, setting the reminder to go out the day before isn't as helpful. I want them to be reminded the morning of each daily "event".