Hi - I have a meditation timer that logs each session. It is great for showing me average and median time over the last 3 years. The problem I'm having is I want to know how many days out since I started the log I have meditated. I have a time date field as a single column that presents "1/2/13 15:33". Some days I meditated 3 times and some days not at all.

Any advice on how I can account for the zero session days?

Awesome ! Thanks