Thank you for your message krab. You understand correctly. My expense claim covers the time period from 1/12/2013 to 27/12/2013 krab. The reason why I entered 25/12/2013 is that the system does not allow us to enter the future date.
Based on the recommendation from the attached email, K.Sunisa suggested us to key-in the timesheet and expense in advance of we were able to know the plan and I did based on the recommendation.