at one's leisure

People tend to think of play as an activity one engages in at one’s leisure, outside of learning important skills needed to succeed later in life, such as hunting, mating, and evading predators.

One could explore the iconoclastic work of Iris van Herpen at one’s leisure.

Streaming shows at one's leisure is certainly the most seismic change there has been in TV since its inception.

“At these times,” said Dumbledore, indicating the stone basin, “I use the Pensieve. One simply siphons the excess thoughts from one’s mind, pours them into the basin, and examines them at one’s leisure. It becomes easier to spot patterns and links, you understand, when they are in this form.”

Its enigmas were best decoded at one’s leisure.