London to Mexico City
These two are not a fixed distance apart. The gap is −7h, −6h at different points in the year, and it changes 3 times.
Reading your clock…
Every gap between London and Mexico City, with dates
This is the table other converters do not show. Each row is a stretch of the year during which the difference is a particular number. Dates are London's local dates.
| From | Until | Mexico City is | Length |
|---|---|---|---|
| Tuesday, 1 September 2026 | Saturday, 24 October 2026 | 7 hours behind | 54 days |
| Sunday, 25 October 2026 | Saturday, 27 March 2027 | 6 hours behind | 154 days |
| Sunday, 28 March 2027 | Saturday, 30 October 2027 | 7 hours behind | 217 days |
| Sunday, 31 October 2027 | onwards | 6 hours behind | — |
The highlighted row is the one to watch. For 154 days from Sunday, 25 October 2026, the difference is 6 hours behind rather than the usual figure. A weekly call booked outside that window arrives an hour off inside it.
London hours converted to Mexico City
As at Monday, 14 September 2026. Use the converter above for any other day — and if the table of gaps says the difference changes, these numbers change with it.
| London | Mexico City |
|---|---|
| 07:00 | 00:00 |
| 08:00 | 01:00 |
| 09:00 | 02:00 |
| 10:00 | 03:00 |
| 11:00 | 04:00 |
| 12:00 | 05:00 |
| 13:00 | 06:00 |
| 14:00 | 07:00 |
| 15:00 | 08:00 |
| 16:00 | 09:00 |
| 17:00 | 10:00 |
| 18:00 | 11:00 |
| 19:00 | 12:00 |
| 20:00 | 13:00 |
London
Europe/London
Changes clocks twice a year, between UTC+00:00 and UTC+01:00. Next change Sunday, 25 October 2026.
When London and Mexico City can actually talk
On a standard 09:00–17:00 day in both cities, the working hours overlap for 1 hour. That window is 16:00–17:00 in London, which is 09:00–10:00 in Mexico City.
That is tight. A recurring call here has very little slack, so a daylight saving shift at either end can wipe the window out entirely.
Calculated for Monday, 14 September 2026. Because the gap changes during the year, this window moves with it — the planner recomputes it for any date you pick.
Questions
London and Mexico City, explained
What is the time difference between London and Mexico City?
There is no single answer, which is why most converters get this wrong for part of the year. Mexico City is 7 hours behind, 6 hours behind relative to London at different points in the year. Right now it is 7 hours behind. The table on this page gives the exact dates for each.
Why does the difference between London and Mexico City change?
London moves between UTC+00:00 and UTC+01:00, while Mexico City stays on UTC-06:00 all year. A gap only stays fixed when both ends are fixed. Here one end moves, so the difference moves with it even though nothing changed at the other end.
When is the difference between London and Mexico City unusual?
The shortest window runs from Sunday, 25 October 2026 to Saturday, 27 March 2027 — 154 days during which Mexico City is 6 hours behind relative to London rather than the usual amount. Short windows like this are where recurring meetings break, because nobody thinks to check.
Does this account for daylight saving automatically?
Yes. Offsets come from your device's own copy of the IANA time zone database through the browser's Intl API, so they reflect whatever rules are current rather than a table bundled here that could go stale. Pick any date in the converter and it resolves that date's rules, not today's.