Pacific: 11:30 PM ~ 6:30 AM, Tuesday, January 18th, 2010
Eastern: 2:30 AM ~ 9:30 AM, Wednesday, January 19th, 2010

Monthly content update. Supposed to last 7 hours, but knowing nexon it will probably take an extra hour or two. Update notes have yet to be released.

Combat Arms Server Status -- Online FPS Action