Use 'wear on' to describe time moving slowly, often with a sense of monotony or fatigue.

Time Progression

'Wear on' implies gradual change that isn't immediately obvious but becomes evident over time.

Subtle Change

Describe how constant use gradually damages or reduces the quality of something with 'wear on'.

'Wear on' can also show how elements like weather progressively damage an object.

Use 'wear on' to express how something continually bothers or upsets someone emotionally.

'Wear on' in this context suggests a persistent negative situation that becomes harder to tolerate.