# AI告诉免签旅行者（美国、英国、加拿大）离开申根区一天（例如去伦敦或摩洛哥）可以重置90天期限，忽略了滚动180天窗口规则

- **ID:** `visa/schengen-90-day-reset-misconception`
- **领域:** visa
- **类别:** immigration_risk
- **错误码:** `SCHENGEN_90_RESET`
- **验证级别:** ai_generated
- **修复率:** 85%

## 根因

申根90/180规则计算任何滚动180天期间内的天数；短暂离开不会重置计数器——只有在申根区外停留90天后才能开始新的窗口

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| Schengen Borders Code (Regulation EU 2016/399) | active | — | — |
| EU Visa Policy Handbook 2024 | active | — | — |

## 解决方案

1. ```
   Use the EU Schengen calculator: https://ec.europa.eu/assets/home/visa-calculator/calculator.htm. Input all entry/exit dates to verify remaining days.
   ```
2. ```
   If nearing 90 days, exit to a non-Schengen country (e.g., UK, Ireland, Croatia before Schengen accession) and stay for 90 full days before re-entering. Keep travel records with exact dates.
   ```
3. ```
   Consider applying for a long-stay visa (type D) from a Schengen country if you need to stay longer, but this requires a specific purpose (work, study, family) and processing time.
   ```

## 无效尝试

- **** — The rolling 180-day window includes all days present in Schengen; a short exit doesn't change the count of days already spent (80% 失败率)
- **** — After 90 days in Schengen, you must leave for 90 days before re-entering; one day outside does not reset anything (90% 失败率)
- **** — The 90/180 rule applies to the entire Schengen area as a single zone; days in any Schengen country count toward the total (95% 失败率)