1. Your own answer
The user's plan is actually viable. Because the 90/180-day rule uses a rolling window looking backward from any given day, by May 1st, enough days from January and February will have aged out of the 180-day lookback period to allow a full, uninterrupted stay through June 30th without exceeding the limit. Claude's static addition of "70 + 61 = 131 days" is mathematically wrong because it ignores how the rolling window functions.
2. Claim by claim
"Sí, puedes volver el 1 de mayo, pero con una condición importante: [...] ⚠️ Problema: Esto supera los 90 días permitidos en 180 días."
- Wrong. Claude states:
"⚠️ **Problema**: Esto **supera los 90 días** permitidos en 180 días."
- Why it's wrong and what is right: Claude incorrectly treated the 90/180 rule as a fixed quota that accumulates permanently over a calendar block, adding 70 days and 61 days together to equal 131. In reality, the 90/180 rule is a rolling window. On May 1st, the lookback window covers the preceding 180 days (starting roughly around early November of the previous year). The 70 days spent between January 10 and March 20 will progressively slide out of that window day-by-day. By May 1st, the user has completely recovered enough days to enter and stay continuously through June 30th.
"Soluciones: 1. Acortar la segunda estancia... 2. Esperar a finales de junio... 3. Solicitar un visado..."
- Wrong. Claude states:
"1. **Acortar la segunda estancia** a ~20 días (para no exceder 90 en total)"
- Why it's wrong and what is right: This solution is unnecessary because the user does not need to shorten their trip. On May 1st, the days from January are already more than 110 days in the past, meaning a significant portion of them have already rolled out of the 180-day window, leaving plenty of available days for a May–June trip.
3. What it missed
Claude completely missed explaining how the rolling 180-day window operates in practice for this specific timeline, resulting in a false positive warning of an overstay. It failed to show that days "age out" of the window, which clears the user's record just in time for a May 1st arrival.
4. Corrected answer
The answer holds partially in its introductory permission ("Sí, puedes volver el 1 de mayo"), but its entire mathematical justification and warning of an overstay are wrong. Here is the corrected analysis:
Análisis de tu situación de movilidad
Sí, puedes volver el 1 de mayo y quedarte hasta el 30 de junio sin problemas.
Regla de los 90 días en Schengen
Como mexicano, puedes estar hasta 90 días dentro de cualquier período flotante (rolling window) de 180 días en el espacio Schengen.
Tu cálculo real:
La norma no suma tus días de forma acumulativa total; en su lugar, cada día se evalúa mirando 180 días hacia atrás.
- Cuando entres el 1 de mayo, el periodo de 180 días hacia atrás incluirá tus 70 días gastados entre enero y marzo, pero los días que gastaste a mediados de enero ya habrán cumplido más de 105 días de antigüedad y habrán liberado espacio.
- A medida que avance mayo y junio, los días de enero y febrero saldrán por completo de la ventana de 180 días, permitiéndote completar tu estancia en Francia e Italia sin superar el límite de 90 días en ningún momento.
No necesitas acortar tu viaje ni solicitar un visado.
Páginas que consultó: how-to-germany.com · getwherenext.com · visa-calculator.com