Blizzard announced the end of the current PvP season of Cataclysm Classic. It ends on Monday, February 10th.
PvP Season 10 in Cataclysm Classic – the Ruthless Gladiator season – will end at 10:00 p.m. PST on Monday, February 10.
That’s 1:00 a.m. EST on Tuesday, February 11, and 17:00 AEDT.