# WorldApi document shapes

Outbound JSON documents
- WorldCycleResponse (`GET /api/world/cycle`)
  ```json
  {
    "currentUtc": "string (ISO-8601 datetime)",
    "dayLengthSeconds": 1200,
    "timeOfDaySeconds": 438.2,
    "timeOfDayNormalized": 0.365,
    "phase": "day",
    "isDay": true,
    "lightLevel": 0.91
  }
  ```