Fireworks Display

Betsy, George and Abe are shooting off fireworks for the Fourth of July.  Betsy launches one every 2 minutes, George launches every 3 minutes and Abe launches every 4 minutes.  They each shoot their fireworks in a pattern of red, white and blue repeating.  At exactly 10:00PM, they all shoot off a red firework.  At what time will they all shoot a red firework again?
Enter the time followed by AM or PM.