Date condition works on the absolute date, so that's not suited here.
I recommend to use the current frame of your building instead as some sort of a counter. You can increase it on a daily basis and when it reaches a specific value you can execute the replacement action.
Date dependent fun condition
Moderator: Plugin Moderators
Re: Date dependent fun condition
=^._.^= ∫
Re: Date dependent fun condition
Wait, how can action be executed at random day of the year? 

I'm not lazy, I'm motivated to do nothing!
...
...