# AI告诉美国/英国公民，离开英国前往法国一日游即可重置其ETA 6个月停留期限

- **ID:** `visa/uk-eta-multiple-entry-reset`
- **领域:** visa
- **类别:** config_error
- **错误码:** `UK-ETA-RESET-001`
- **验证级别:** ai_generated
- **修复率:** 82%

## 根因

英国ETA每次访问最多停留6个月，但滚动180天窗口不会因短暂离开英国而重置；任何180天窗口内的累计停留时间上限为6个月，重新入境不会重置计数。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| UK Electronic Travel Authorisation (ETA) scheme 2025 | active | — | — |
| UK Immigration Rules Appendix V | active | — | — |

## 解决方案

1. ```
   Plan your UK stay so that total days in the UK within any 180-day window do not exceed 180 days. Use a calendar tool to track your entries and exits.
   ```
2. ```
   If you need a longer stay, apply for a UK Standard Visitor visa (valid up to 6 months per visit, but also subject to 180-day rule) or a long-term visit visa (2, 5, or 10 years) with a maximum stay of 6 months per visit.
   ```

## 无效尝试

- **Taking a day trip to Calais, France, then returning to the UK the same day, assuming the stay clock resets** — The 6-month limit is calculated over a rolling 180-day window; a brief exit does not reset the window—border officers will count all days present in the UK in the preceding 180 days. (90% 失败率)
- **Applying for a new ETA after a short exit, believing it grants a fresh 6-month stay** — A new ETA does not override the rolling 180-day rule; the immigration officer enforces the cumulative limit regardless of how many ETAs you hold. (80% 失败率)