Allow keyboard time input

[KirilOkun]

Currently the only way to set time is with the sliders. Would be very helpful to be able to enter hours and minutes with the keyboard in addition to the sliders.
Thanks in advance.

[Nantris]

I would love this. Easily the best date/time picker I have found, but that is a deal breaker for my application. Even if you never add this, thanks for making this great code available!