How to use date and time in a field?

Hello All,

I want date and time in a single field. For which i used TransDateTime EDT. but when i select, only date value is coming, time is always Zero.

1. How to get date and time? Is there any other EDT..? Or possible only by coding?

2. Also Customer select any date(not only current date), but it should bring current time, Is that possible?

please Clarify me!