Help with expression

[hopkinsc]

Hi All,

I have a field 'TimeTaken' which holds the time taken to complete a job in the format of hh:mm:ss.

I want to sum another field (Completed_Flag) where the TimeTaken is less than 4 hrs.

Can anyone help please?

[hopkinsc]

hey guys, i am having issues with this and have posted a sample here if you could help

What is wrong with this expression?