One way:

Assuming your data are in A1:A2:

A3: =A2-A1

Format A3 as Format/Cells/Number/Custom [h]:mm:ss


In article ,
"carl" wrote:

My time data looks like this

2/10/2005 4:02:38 PM
2/10/2005 4:03:45 PM

Is there a formaula I can use to subtract the two times ?

Thank you in advance.