In my grid, I got data like these :

1-12-1998 Aaron aaronchu@netvigator.com
1-12-1998 Brian brianlam@hknet.com
2-12-1998 Wilson wilson@hkstar.com
2-12-1998 Aaron aaronchu@netvigator.com
2-12-1998 Tom tomchiu@hknet.com
:
:
and so on

I want to just display once time in date column, how can I do this?

Thank you in advance!