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Somar ou subtrair dias de uma data

Adicione ou diminua anos, meses, semanas e dias a partir de uma data inicial.

Add Days to Date

Como funciona

  1. Units are applied to the start date in a fixed order (years, then months, then weeks, then days) and the exact composition is echoed with the result so the arithmetic is auditable.
  2. Months and years clamp at month ends: Jan 31 + 1 month is Feb 28 (or Feb 29 in a leap year), and Feb 29 + 1 year is Feb 28. When clamping happens, the note says so.
  3. Days and weeks are pure calendar shifts anchored to noon UTC, immune to daylight saving and midnight rollover.

Informações úteis

  • Negative values subtract; for example, days = −10 moves the date back ten days. The direction is shown in the composition line.
  • Empty unit fields are treated as 0; you only need the units you are actually changing.
  • Result dates are real calendar dates; the weekday is shown so you can sanity-check the result at a glance.
Calculadoras de datas

Diferença entre datas

Calcule a distância exata entre duas datas em anos, meses, semanas e dias.

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Calculadoras de datasDestaque

Dias entre duas datas

Conte o total absoluto de dias corridos entre duas datas no calendário.

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Calculadoras de datas

Dias até uma data

Calcule quantos dias faltam para uma data futura ou se passaram desde então.

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Calculadoras de datas

Calculadora de número da semana

Descubra o número da semana ISO de qualquer data do ano.

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Perguntas frequentes

What happens to January 31 plus one month?
February has no 31st, so the result is clamped to the last day of February (28, or 29 in leap years). The page shows the clamping note whenever it applies.
Can I subtract instead of add?
Yes, enter a negative number or use the subtract option. The operation and direction are always shown in the result line.
Are the units combined?
Yes: years, months, weeks and days are applied in that order to the start date, and the exact composition is echoed in the result so the arithmetic is auditable.