Every day after sunset Mexico starts to have fun. All the clubs and restaurants open their doors and the noisy locals start to be even louder. Sleep is not an option. So we relax and enjoy the singing. Mexicans are very good at it. They love to sing and to party.
At 2 a.m. sharp everything is off as if there is a switch somewhere. Police reacts very quickly when someone is not “switched” and still wants to party. Do not plan to go to sleep before 2 a.m. in Mexico.