Time difference between Mexico City and Paris

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Mexico City does not change its clocks and Paris goes forward on the last Sunday in March and back on the last Sunday in October.

Mexico City stays put all year while Paris moves, so the gap changes twice a year from Paris's side alone. A recurring meeting set in Mexico City's calendar will drift by an hour without anyone touching it.

About Mexico City and Paris

Mexico abolished daylight saving in October 2022, so Mexico City sits at UTC−6 all year. It used to move with the US and no longer does, which means every gap to a US city now changes twice a year from the US side alone.

France is on Central European Time and geographically should not be — Paris sits almost on the Greenwich meridian. It has been an hour ahead of the sun since the occupation in 1940 and never went back, which is why sunset in Paris is so much later than in London for the same latitude.

What 8 hours actually costs you

There is no shared working hour at all. Nine to five in Mexico City is 5:00 PM to 1:00 AM in Paris. Somebody has to be outside their working day, and the only question is who — so the useful thing is to decide that once rather than rediscover it every time.

The closest the two working days come is 9:00 AM in Mexico City, which is 5:00 PM in Paris — both inside office hours, just barely. That is the slot to use, and it is the one people who work this pair already default to.

At 8 hours the two are far enough apart that the date stops matching. Midday in Mexico City is 8:00 PM the same day in Paris, but the ends of the working day do cross. "Tomorrow morning" means different things to the two of you, and a deadline given without a date attached will be missed by one side or the other.

When they can both be at their desks

Nine-to-five in Mexico City and nine-to-five in Paris do not overlap at all. With 8 hours between them, one side is always outside working hours, and the practical question is which side takes the early start or the late finish rather than when to meet.

Mexico City

Paris

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How far apart Mexico City and Paris are

The shortest path over the Earth's surface between the two is 9,196 km (5,714 miles). Flown along that line, an airliner at cruising speed takes roughly 11 hours 35 minutes in the air — actual routings add to it, and whether a nonstop service exists depends on the airlines rather than the distance.

Over that distance you cross 8 hours of clock, which is where jet lag comes from: the body shifts by about an hour a day, so 8 hours takes most people 8 days or so to absorb. Flying east to Paris is the harder direction — you lose the hours and have to fall asleep earlier than your body wants.

Mexico City to Paris, hour by hour

On the usual gap of 8 hours.

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