Time zone
Convert times between different world time zones quickly.
Time zone
São Paulo
America/Sao_Paulo
03:59 PM
Brasília
America/Sao_Paulo
03:59 PM
Abu Dhabi
Asia/Dubai
10:59 PM
Addis Ababa
Africa/Addis_Ababa
09:59 PM
Beijing
Asia/Shanghai
02:59 AM
Cairo
Africa/Cairo
09:59 PM
Jakarta
Asia/Jakarta
01:59 AM
Moscow
Europe/Moscow
09:59 PM
New Delhi
Asia/Kolkata
12:29 AM
Pretoria
Africa/Johannesburg
08:59 PM
Riyadh
Asia/Riyadh
09:59 PM
Tehran
Asia/Tehran
10:29 PM
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Time zone
Comprovante de Conversão
De
Para
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Os resultados são baseados em tabelas de equivalência padrão e podem variar.
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Understand the concept
Time zone is the way of organizing time in regions of the planet, based on a “reference time” (such as UTC) and applying offsets.
The main practical challenge is that some places change the offset throughout the year due to local rules (daylight saving time), and these rules can change over time.
Practical example: a meeting at 10:00 in São Paulo may fall at different times in Lisbon depending on the time of year (seasonal changes). That's why it's better to convert by city/region than by a fixed offset.
Use this converter to plan meetings, deadlines and trips, avoiding “guess” errors when involving different countries.
Tip: always confirm the date with the time. “10:00” without a date may give different conversions in different months because of daylight saving time.
How to use this tool
- Choose the origin location and destination location.
- Enter the time and date.
- Read the converted time at the destination.
- If there is a change due to daylight saving time, compare different dates to understand the variation.
FAQ
Why does the same time give different results on different dates?
Because of daylight saving time and local rules.
Is UTC offset enough?
Not always. City/region is safer, as it considers calendar rules.
Does this apply to legal deadlines?
Use as a reference and always confirm location-specific rules.
What is a common error?
Converting without informing the date or assuming that the offset is fixed for the entire year.
Technical notes
Base técnica
Fórmula: Hora_destino = Hora_origem + (Offset_destino − Offset_origem) no mesmo instante. Unidade e escopo: convertemos um mesmo instante para diferentes cidades/fusos e exibimos o horário local de cada uma.
Referência
Base de fusos IANA (via API Intl/Date do ambiente).