Getting Data from two fields into a multi-line field

Getting Data from two fields into a multi-line field

Hi,

I am trying to combine 2 fields into 1 field automatically when the two fields are updated. Basically I have a "Start_Time" field and a "Start_Date" field that I need to combine into a "Start_Time_Date" field that will have both displayed in the one field. How can I pull the information automatically into the multi-line field with a soft return between the two fields.

Any help would be appreciated.

Thanks!

Trish