{
  "date": "2026-09-01",
  "timezone": "Asia/Shanghai",
  "station": {
    "name": "马岙航道窄口处 C1 站",
    "channelId": 2
  },
  "rule": {
    "maxCurrentKnots": 1.5,
    "lightLimit": "nautical_dawn_to_nautical_dusk",
    "summary": "允许窗口 = C1 流速 ≤ 1.5 节的缓流时段，与航海曙光始至暮光终时段的交集。"
  },
  "light": {
    "nauticalDawn": "04:37",
    "sunrise": "05:30",
    "sunset": "18:17",
    "nauticalDusk": "19:10"
  },
  "slackWindows": [
    {
      "start": "01:01",
      "end": "02:07",
      "durationMinutes": 66,
      "status": "night_prohibited"
    },
    {
      "start": "07:33",
      "end": "08:29",
      "durationMinutes": 56,
      "status": "allowed"
    },
    {
      "start": "13:20",
      "end": "14:26",
      "durationMinutes": 66,
      "status": "allowed"
    },
    {
      "start": "19:52",
      "end": "20:49",
      "durationMinutes": 57,
      "status": "night_prohibited"
    }
  ],
  "allowedWindows": [
    {
      "start": "07:33",
      "end": "08:29",
      "durationMinutes": 56
    },
    {
      "start": "13:20",
      "end": "14:26",
      "durationMinutes": 66
    }
  ],
  "passageAllowed": true,
  "advisory": "本结果仅供航行计划参考，不代替引航、VTS 指令、现场气象海况核验或通航许可。",
  "sources": {
    "current": "http://hai.tsphp.com/?",
    "light": "https://www.timeanddate.com/sun/china/ningbo?month=9&year=2026",
    "website": "https://www.zsagent01.com/guanmen/?date=2026-09-01"
  }
}