Thanks for helping!

Unfortunately this formula isn't bringing back the value that I wanted. I want to calculate the total work hours/minutes that go in to completing a job. For example in the first row, the value should be 7:04. Because, although we received the issue at 22:45 the previous night we only began working on it at 8:30. Unfortunately it seems to be when we log an issue outside of work hours and then complete it the following day during work hours.

I want to know if there is any way around this.

Thanks again for the effort, but is there anything else I could do to calculate this?