time_report_date-wise_employee-wise

I am having date-wise, employee-wise login logoff data in Col A to C as under

DATE EMP_NO TIME

01/03/2014 1525336 09:04
01/03/2014 1525336 09:04
01/03/2014 1525336 09:27
01/03/2014 1525336 09:41
01/03/2014 1525336 09:58
01/03/2014 1525336 10:06
01/03/2014 1525948 10:14
01/03/2014 1525948 10:14
01/03/2014 1525948 10:22
01/03/2014 1525948 10:47
03/03/2014 1525336 10:13
03/03/2014 1525336 10:53
03/03/2014 1525336 10:59
03/03/2014 1525336 11:04
03/03/2014 1525336 11:19
03/03/2014...

time_report_date-wise_employee-wise