Okay, an admission first up – I dislike time zone allocations in many countries around the world. Not because I disagree with the cultural, economic and historic reasons for the variances, but because I like human allocation of hours to be as close as practicable to actual sunlight hours. Keeps us closer to the natural rhythms of the world: summer winter, sunrise sunset. During the spring and autumn equinoxes, the sun should rise at 6 am, reach its zenith at midday, and set at 6 pm.
Here at Guadalajara in Jalisco State, Mexico, the sun rises at about 7:30 am and sets about 8:30 pm – 13 hours at this time of year. Waking up at 6 am in pitch-darkness in the middle of summer throws me a bit. Why are the daylight hours so late? One – because Guadalajara is in the wrong time zone. Two – because Guadalajara has “daylight savings time” (moving sunlight one hour forward during the winter).
If it were up to me, states could only implement daylight savings (assuming they wanted to) if they are not in the Tropics. I.e. if they are north of the Tropic of Cancer or south of the Tropic of Capricorn. In the Tropics, sunshine hours don’t vary significantly from summer to winter, so why bother with daylight savings?
Here’s my Time Zone Refresh for Mexico, aligning states to more appropriate longitudinal-based time zones from Greenwich Mean Time (GMT).
- The western states have their time zones correct: Baja California Norte = Pacific Time (-8 GMT). Baja California Sur, Sonora, Sinaloa, Narayit = Mountain Time (-7 GMT).
- The states from Veracruz and Oaxaca eastwards have their time zones correct = Central Time (-6 GMT).
- All remaining states should switch their time zones from Central Time to Mountain Time.
- Daylight savings should only be used, if the citizens want it, in the following states: Baja California Norte, Sonora, Chihuahua and Coahuila.
In some future posts, I may turn my purifying stare at other parts of the world that I reckon need a Time Zone Refresh.