diligence and indolence; attendance and absence
A formal, somewhat literary noun contrasting diligence/attendance with laziness/absence. Often used in workplace or school contexts, similar to 勤怠 (きんたい) but less common. The cross-reference to 勤怠 suggests it may be a less frequent variant.
See also: 勤怠
We introduced a system to record attendance and absence.
Employees' diligence and indolence are reflected in their salaries.