We have no union which would require such separate pay schedules or convoluted procedures.
All pay for time not worked is computed on the basis of the regular rate for the work, whatever it is. If/when we establish a premium rate for a job (such as, for example, third-shift type customer service during the wee hours in North America when Asian callers abound), that is the rate used for paid time off. Operating globally, we don't characterize any one set of work hours as a universal "standard operating schedule"; shift schedules vary by office location and function, and we don't specify any shift differentials nor any associated specific premium rates.
E. James (Jim)