Vaping :  Less than 10 minutes.     Lasts 2-4 hours.
Edibles:   Within 30-60 minutes.    Lasts up to 8 hours.
Capsules/ Gel:  Within 30-90 minutes.  Lasts up to 10 hours. 

Topical:  Less than 10 minutes.      Lasts 4-6 hours.
Tinctures/ Spray:  Less than 10 minutes.   Lasts 4 hours.
 

The CBD Kick In listing is a general rule of thumb as everyone metabolizes CBD differently. This guide is to show how the varied delivery methods work on the average.