After running a grind, I don't see any way to distinguish clocked in employees. The grind process automatically fills in the out times with the current clock time, which isn't guaranteed to be synced between the ALOHABOH machine and the server that I'm reading the information from. I suppose I could come up with a kludge: if the clock out time is within 2 minutes of the server time, then assume that the employee is clocked in. Is there a more elegant solution?