When do American Bullfrogs come out at night or day time?

ok this good info- so yeah they come out in late may and early June and they start to hibernate in September. i know this cause i catch them all the time. then when they hibernate you will have to wait bout eight months till they come back out. its spring now April 5 2011 they still ain't out.gues till late may or early June.guess what they just came out to start calling saying jug - orum at this lake in Georgia April 9 , 2011 so ya they should be out about now . i also wrote the stuff above just tellling the millions of people that they are out now