Good Friday is a tricky one… working on the script for that.
Easter sunday is the first sunday after the first full moon after the vernal equinox.
Most people wouldn’t be able to figure that out, unless it was marked on a calendar. BUT, there is a formula for it… problem is, BASH (because I was going to write a bash script to set the database… ) doesn’t do floating point, so I’m having to work around that.
Could probably do it as a PHP or PERL script though, and just set it as a cron job.