I've spent around 9/10 years trading with technical analysis.
I used to spend 2/3 hours on a weekend and easily 1/2 hours each day on the screen - that doesn't include the amount of times I'd be checking from my phones on and off throughout the day too!
So add that all up - its 620-700 hours per year.
Frightening.
We trade for freedom and time - not to spend...