168 hours per week
9 hours (can't forget unpaid lunch breaks) x 5 days = 45 hours of work per week = 123 hours left per week
8 hours of sleep x 7 days per week = 56 hours of sleep per week = 67 hours left per week
1 hour commute x 2 times per day x 5 days per week = 10 hours of commuting per week = 57 hours left per week
15 minutes of cooking + 15 minutes to eat × 2 meals per day (breakfast and dinner) = 7 hours of cooking and eating per week (GENEROUS) = 50 hours left per week
1 hour of chores per day = 7 hours of chores per week (again, GENEROUS) = 43 hours left per week
Now that you've done the bare minimum to stay alive without ANY margin for error, you have 43 hours left per week.
43 / 7 = about 6 hours per day
Grocery shopping trip?
Doctor's appointments?
Have kids?
Phone calls?
Driver's license renewal?
Car broke down? Car maintenance?
That time gets eaten up very quickly, and not by hobbies or other things that rejuvenate you.
Is it any wonder that we're all so miserable?