Every hour, every day, for an entire year, Tehching Hsieh photographed himself on 16mm film at his punchcard machine. He consigned himself to a temporal leash, able to stray no farther than thirty minutes from his punchcard machine, be it for groceries, or for sleep. At the end of the year (1981) he made a movie, running 24 frames per second, lasting 365 seconds, documenting his feat of chronocritical discipline. Seen here is the proof and product of his labor.

http://www.artnews.com/2017/05/11/slow-and-steady-tehching-hsieh-in-venice/

https://hyperallergic.com/385988/tehching-hsiehs-art-of-passing-time/

Doing Time at the Prison Palace (Palazzo delle Prigioni).