Wasting, or more generally, not paying attention to time is my favorite state of being. Us Mediterrans are known for being "lazy" and wishy-washy with our time. That's why I keep Saturdays open on my calendar, no appointments with friends, nothing. Even if I get myself into something I usually don't commit to a specific time, I might say around "6 pm" which in Med timing is really 8pm.
Since I moved to the US I've been working 60 hour weeks, which I don't mind since I'm doing what I love and largely on my own terms. However, the act of keeping time is the thing that stresses me out the most.
When I started transitioning from a programmer to a CEO I have weeks where my calendar has 20 events and meetings on it and the thought of it in itself is stressful. Since then I've learned what my limits are and keep large blocks of time on my calendar to myself which I use to code or to just squander it on something semi productive like brainstorming future product ideas with one of our engineers.
As Kanye says "time is extremely valuable and I prefer to waste it."