Celtic Heroes

Last time I needed the SV bosses, their spawn times were all 60 minutes
Is that still the same now after multiple updates or have they changed?
If so, what are the current spawn times on all the SV bosses?
And if possible, their window times too...

All help is appreciated

There like 30min each. Honestly tho who even times them xD. I also have no idea if timers were ever 60.