Time in a personalized power or HR zone

Hello,

My goal is to compare the time spent between 150 and 200W between two seasons. This power interval is across i.i Z2 & Z3

I know I have already talked/asked for a way to quantify time spent in a personalized heart rate or power zone. I have understood that it is quite ressource consuming since it would imply having to categorize the time spent for each power and hr for an activity.

I guess that if I change the zones in my settings and apply to old results, I will lose the “dynamic” evolution due to change in FTP & so on.

Do you guys have an idea of how I could do this ? Maybe with another web app ?

Thanks

This is on the list, it’s not impossible but a bit of work. I really need to calculate and store fine grained “time at watts” curve (maybe 5w buckets) to be able to support this kind of query.

thank you David, I know you have bigger priorities

A little up for an old user ;+)