Timezone change for Mexico: the Presidential Decree

[Alan Perry]

A guy from our Mexico subsidiary finally found the Presidential Decree
outlining the timezone changes in Mexico.

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I finally got my hands on the Official Presidential Decree that sets up the
rules for the DST changes. The rules are:

1. The country is divided in 3 timezones:
   - Baja California Norte (the Mexico/BajaNorte TZ)
   - Baja California Sur, Nayarit, Sinaloa and Sonora (the Mexico/BajaSur TZ)
   - The rest of the country (the Mexico/General TZ)
   
2. From the first Sunday in April at 2:00 AM to the last Sunday in October
   at 2:00 AM, the times in each zone are as follows:
   BajaNorte: GMT+7
   BajaSur:   GMT+6
   General:   GMT+5
   
3. The rest of the year, the times are as follows:
   BajaNorte: GMT+8
   BajaSur:   GMT+7
   General:   GMT+6
   
The Decree was published in Mexico's Official Newspaper on January 4th.

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