Why do Crickets make noise at night??

United States
September 25, 2008 9:41am CST
At 8am new york time and was just in time for work and i heard a very noisy cricket at my cubicle. I thought crickets are suppose to make their noise at night? So here after 3 hours and the cricket is still making noise. Oh well I might as well enjoy it, makes me feel like I'm out in the wilderness ha ha ha..