What time is it in Lisbon when it is noon in São Paulo?
The converter above answers that for whichever date you pick — and the date matters, because the gap is not constant through the year.
São Paulo to Lisbon
Convert a time from São Paulo to Lisbon on any date. Lisbon changes its clocks for daylight saving and São Paulo does not, so the difference between them shifts by an hour twice a year.
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Difference—
São Paulo and Lisbon
São Paulo runs on America/Sao_Paulo and Lisbon on Europe/Lisbon. Lisbon changes its clocks for daylight saving and São Paulo does not, so the difference between them shifts by an hour twice a year.
This is why the converter above asks for a date. A meeting arranged in October for a date in November can land an hour off if you assume today's difference still holds — the clocks move between the two moments, and only one side may move.
The safest habit for scheduling across zones is to agree on the local time in one place and let each side convert, rather than agreeing on "the difference". The difference is a property of a date, not of a pair of cities.
Frequently asked questions
Is the difference between São Paulo and Lisbon always the same?
Lisbon changes its clocks for daylight saving and São Paulo does not, so the difference between them shifts by an hour twice a year.
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