Define Time Types
In this IMG activity you define the time types used by your company. Time types represent a semantic grouping of duration periods.
Standard Settings
The standard SAP system contains common time types as standard entries for a personnel subarea grouping. These standard entries are generally sufficient for day to day processing within payroll.
Recommendation
Make new entries only if you need time types different to the ones provided in the standard system.
Activities
Further Notes
You should perform all your entries in the name
range provided for customers. Otherwise, they may be overwritten by a release
upgrade. Changes to SAP standard entries are considered as changes to the
program. The name ranges for customers begin with Y, Z, G, or a special
character.
If you introduce the management of working time
(employee time recording) now or at a later stage, your entries should
correspond to the implementation guidelines in 
Employee time recording.