Thanks for this explanation. So what you are saying is that there is a difference between the actual numbers of hours that these guys worked and the number of hours that they are credited with because of overtime rules?
YES!
Also, different jurisdictions have different agreements(contracts).
Example: Saturdays are time and a half in some and double time in others.
The agreements are usually public because of government funding. But can be difficult to find.
An old contract:
http://www.twulocal100.org/sites/twulocal100.org/files/contract_v5.pdf
Somewhere in here should(?) be the current contract?
http://www.twulocal100.org/contracts-taoamta-bus