Previous n dates

[Steve-Mcl]

Hi @jaclarke

I am writing to request (if not difficult) would you be able to implement a prevNDates (like the reverse of nextNDates)?

I will explain my logic and you might have a better idea.

Say an application has a schedule of 0 0 13 * * * (run at 1pm) and the application was offline at 13:00. I would like to know what the last time if should have ran. NOTE: I have no way of knowing it was supposed to run at 13:00 as this is user configured.

I guess I could call nextNDates with a time in the past however if the schedule happened to be something like 0 0 13 * 1 * then I would have to loop back to January.

Any hints would be great.

Thanks, Steve.