What time is it in São Paulo when it is noon in Lisbon?
The converter above answers that for whichever date you pick — and the date matters, because the gap is not constant through the year.
Lisbon to São Paulo
Convert a time from Lisbon to São Paulo 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—
Lisbon and São Paulo
Lisbon runs on Europe/Lisbon and São Paulo on America/Sao_Paulo. 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 Lisbon and São Paulo 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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