local datetimevar clockIn;
local datetimevar clockOut;
local stringvar str;
str := {cktimhim.tlatim};
//cdatetime(yyyy,mm,dd,hh,mm,ss)
clockIn := cdatetime(left(str,4), mid(str,5,2), mid(str,7,2), mid(9,2), mid(11,2), mid(13,2));
str := {cktimhim.tlatom};
clockOut := cdatetime(left(str,4), mid(str,5,2), mid(str,7,2), mid(9,2), mid(11,2), mid(13,2));
now you should be able to script your logic. If you need to reference these value in the next record you can change the local to shared (don't forget to reset them if a group header when the user changes) or you can use the Next()/Previous() functions (again remember to check that they are for the same person).
HTH
I need to calculate and provide a report showing if an employee has worked any “double backs” overtime hours. If an employee works an 8hr shift and returns to work before they’ve had an 8hr rest period in between is considered a double back and requires a special pay rate. Our days run from 12:00am to 11:59pm, being a Casino the start and end times vary by employee. 
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