Does the ZAM sever reboot at 11 PM EST or something?

Ya, it happens to me pretty regularly. Every night that I'm browsing the forums at 11pm EST. (Pretty usual time for me, right before I go to bed).

From about 11PM EST to 11:15-11:20PM EST any zam.com or allakhazam.com page is unavailable. Usually a 503 or an [error occurred while processing this directive]. Sometimes it's only 5 minutes or so but like today it took until almost 11:20PM EST for the site to become available again.

I remember there being a thread about this before. I think which ever admin responded took some notes and ended up splitting up the server maintenance stuff to alleviate the server load at the specific times.