PA51 – Display Time Data
PA53 – Display Time Data
PA61 – Maintain Time Data
PA62 – List Entry of Additional Data
PA63 – Maintain Time Data
PA64 – Calendar Entry
PA70 – Fast Data Entry
PA71 – Fast Entry of Time Data
PBAB – Maintain Vacancy assignments
PT01 – Create Work Schedule
PT02 – Change Work Schedule
PT03 – Display Work Schedule
This list sucks. That doesn't cover all time related transaction codes. PT50 – Quota Overview, etc.
Have a look at the below link, might it helps you.<br /><br />http://www.tcodesearch.com/transaction-codes/search?module=PT&comp=&desc=