Mexico's House of Representatives has approved a proposal for Northern Mexico's border cities to share the same daylight saving schedule as the United States.
This change has been already integrated in Anuko World Clock, as of build 5.4.0.2527.
If you are monitoring the time in any of these cities: Ciudad Juarez, Nuevo Laredo, Reynosa, Matamoros make sure to REAPPLY setting for your clocks by re-configuring them again.
A few more border towns have been added to the city database with new DST rules that match USA.
Nik