Reminder Date / Time

It would be nice to be able to pick a specific date and time versus needing to add the exact number of hours from the current time into the future. Ex. If it is 4:40 pm my time and I say remind me in 1 day it will remind me tomorrow at 4:40 pm. If I want it to remind me at 8am the next day I would have to set it for 15 hours which would return it at 7:40 am. Not an issue if it is just one day but from Friday to Monday it becomes challenging. :-)