The following is a list of the planets and the length of time it takes to find their dragonballs.




------------------Earth-------------------------------------

It takes 7 days to find all the dragonballs with a scouter or a dragonradar.


-------------------------Namek------------------------------

Same as earth.


------------------------Vegeta------------------------------

Same as earth.

------------------------Freiza------------------------------

It takes 14 days to find the dragonballs with a scouter or DragonRadar. 28 days without.