This goal has the following fine print specified by sksavant:
Set a goal for number of productive hours every month.
For month of October, I will need to spend 120 hours (520+120=640) on productive stuff. That is about 30 hours a week, which is about 4.5 hours a day.
29/09 : 120 hours look quite high. I'm struggling to skate along the yellow brick road. I forgot to set a break period for the road this long weekend. *Resetting goal to 620 i.e, 100 hours/month = 25/week = 3.5 hours per day
14/10 : Changed goal date to 30/11 and set goal to 760 which is 120 per month.
02/11 : Changed goal date to 31/12 and set goal to 880 (+120)
18/11 : Changed goal date to 29/02/16 and set goal to 1120 (+120*2)
12/12 : Changing weekly rate to 20. Can't seem to keep up with it.
13/02 : Changing weekly rate to 25.