Work days : Monday through Friday
Bank Holidays : 1rst of January, 5th of February, 1rst and 5th of May, 1rst and 16th of September, 2nd of November, 25th of December.
Time zone : UTC -5 à -8
Capital : Mexico
Main Cities : Mexico, Ecatepec, Guadalajara, Puebla, Juárez.
Country Code : ISO 3166-2:MX

VAT : 16%
Currency : Mexican Peso (MXN)
Main Languages : Spanish 
Primary carrier service postal : Correos de Mexico

Don't forget that for the calculation of your delivery delays, bank holidays are not considered work days.