Mexico City time explained
Mexico scrapped daylight saving in October 2022, so Mexico City now keeps the same time all year. A narrow strip of towns along the United States border was exempted and still changes its clocks, to stay aligned with the American cities they trade with daily.
Mexico City does not observe daylight saving. Its offset from UTC is the same all year round, which makes scheduling with it noticeably simpler.
Reaching Mexico City
Mexico City shares most of its working day with the United States. Since Mexico stopped changing its clocks and the US did not, that overlap now shifts by an hour twice a year — which is exactly why the border municipalities were exempted.
How this page works
The time above is calculated on your own device from the IANA time zone
database that ships with your browser, using the zone
America/Mexico_City. Nothing is fetched from a server, and the offset
shown is whatever is currently in force rather than a
number typed into the page — so when a country changes its rules, this
page changes with it.
The difference from your own clock is worked out the same way, comparing Mexico City's current offset against your device's. If your computer's clock is wrong, so is that comparison.