how to set time without date in c#

Feb 19 2015 3:19 PM

1- if i want to make get just time without Date from user as 10:30 Pm not 1/1/2015 00:00:00
2- if I Want get time of Start or End Process and search about time Between that two times
if time of start 10:00 am --- time of End 02:00 pm
user will search enter 01:00 pm that between start & end