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Días entre dos fechas

Cuenta el total absoluto de días naturales transcurridos entre dos fechas del calendario.

Days between two dates

Cómo funciona

  1. Days are counted directly on the calendar, one date at a time, never by dividing a millisecond difference, which goes wrong across daylight saving changes.
  2. The toggle switches convention: end date excluded (Jan 1 → Jan 3 = 2 days) or both endpoints included (= 3 days). The active convention is always labeled.
  3. The business-day figure uses a standard Saturday–Sunday weekend with no holidays; for your own weekend and holiday rules, use the Business Days Calculator.

Información útil

  • Enter the dates in either order: a reversed range is reported as such and the count stays meaningful.
  • Weekday counts include both endpoints regardless of the toggle, so the numbers can differ from the headline count by one.
  • Leap years and month boundaries are handled by the shared calendar engine (Feb 29 included).
Calculadoras de fechas

Diferencia entre fechas

Calcula la distancia exacta entre dos fechas en años, meses, semanas y días.

Abrir herramienta
Calculadoras de fechasDestacada

Calculadora de días laborables

Cuenta los días hábiles entre dos fechas o suma días laborables excluyendo fines de semana y festivos.

Abrir herramienta
Calculadoras de fechas

Días hasta una fecha

Calcula cuántos días faltan para un evento futuro o cuántos días han pasado desde una fecha.

Abrir herramienta
Calculadoras de fechas

Sumar o restar días a una fecha

Añade o resta años, meses, semanas y días a una fecha de inicio para calcular la fecha resultante.

Abrir herramienta

Preguntas frecuentes

Calendar days vs business days: which is shown?
Both. Calendar days count every date, whereas the business-day figure excludes your selected weekend days and any custom holidays you add.
Why not just divide the millisecond difference by 86,400,000?
Because that is wrong across daylight saving changes: some local days are 23 or 25 hours long. These calculators count calendar dates directly, so the result is right in every zone.
Is “from Jan 1 to Jan 3” two days or three?
Both are legitimate: 2 days elapsed, or 3 days inclusive of both endpoints. The toggle switches conventions, and the label always shows which is active.