Calendar 2023 Amphora Holiday Calendar Jan 02-03 Winter break. Feb 06 Official Holiday in Mexico. Constitution Day. Mar 20 Official Holiday in Mexico. Benito Juarez’s birth. Apr 03-07 Spring break. May 01 Official Holiday in Mexico. Labor day. Nov 20 Official Holiday in Mexico. Anniversary of the Mexican Revolution. Nov 23-24 Thanksgiving and Black Friday. Dec 25-31 Winter break. This extended holiday calendar does not apply to our Clinical Care operations at Clínicas Ánfora.