Fix Date Time Picker

[mcverter]

The Date Time Picker on the Schedule Alert Modal is very difficult to use.
When one clicks on the date time fields, it drops down a dialog with dates and times. Nothing happens when one selects a date or time.

One can pick a schedule only by using the arrow keys to the side of the picker.
There actually is a second date-time picker which can be accessed with the drop down arrow. This works. But the user can not pick a time without engaging the original DT picker.

The interface also promises that one can type in the date time. I see no way to do this in the current interface.

It is a very frustrating experience.
Either fix this component or replace it with a date-time picker which works better.