Converting Date and Time into SAP table format From excel

Hi,

I am updating data from Excel file into SAP table but getting issue with date and time. There are few fields with date and few with time.

The SAP table date format is DD.MM.YYYY and time is HH:MM:SS.

The date and time in excel is DD.MM.YYYY and HH:MM:SS but still when the excel date 01.10.2010 updates into SAP table it comes as 20.0-.01-1

and time 12:02:33 comes as 12::0:2: