"Sono stanco di guardare l'orologio."

Translation: I am tired of looking at the clock.

[dnovinc]

"I am sick of looking at the clock. " could this work also ?

[siebolt]

Perhaps "I am sick and tired ...", surely not "sick" alone. "Stanco" is more "tired" than "fed up"

[xyphax]

word reference shows stanco as an adjective can mean

bored, fed up, bothered

as well as

tired, fatigued, weary

although it appears fed up is figurative

http://www.wordreference.com/iten/Stanco

[carolfair]

Why not ... sto stanco di guardando al'orologio???

[StevenMcBrien]

I don't know if "clock-watching" is a purely British idiom, but that is how we would probably phrase this over here. It was rejected nevertheless. Reported 24th February 19

[m87frxJ3]

Watching the clock and looking at the clock are different things.