I think time management as a label encourages people to view each 24-hour period as a slot in which they should pack as much as possible.
Being selective-doing less-is the path of the productive. Focus on the important few and ignore the rest.
Requiring a lot of time does not make a task important.
Doing something unimportant well does not make it important.
I work hard, but in spurts.
A person's success in life can usually be measured by the number of uncomfortable conversations he or she is willing to have.