This one, result Time:
TI = Time_In ;
LT = Leave Time ;
B1 = Break_In1 - Break_Out1 ;
B2 = Break_In2 - Break_Out2
LT - TI - B1 - B2
Note that each Time Field must contain a time till midnight
The difference of any two time fields is the elapsed time in seconds.
( Break_In1 - Break_Out1 + Break_In2 - Break_Out2 ) / 3600
Is the "total hours from 2 breaks"
But I'm not sure that's what you really want.
( Break_Out1 -Time_In + Break_Out2 - Break_IN + Wrap - Break_In2 ) /3600
would be the total hours worked.
Both examples would specify a number result type. If you specify a Time result type, don't divide by 3600--the number of seconds in an hour.
And if your record might clock times that start before midnight and end after midnight, you should use timestamp values instead of time.
Both excellent answers, Thank you both.