{
  "synthetic": true,
  "function": "day",
  "scope": "Finite offline teaching cases only; no live account/platform access.",
  "cases": [
    {
      "id": 1,
      "args": [
        "2026-10-16T00:30:00+11:00",
        "Australia/Melbourne"
      ],
      "expected": "2026-10-16"
    },
    {
      "id": 2,
      "args": [
        "2026-10-16T00:30:00+11:00",
        "America/Los_Angeles"
      ],
      "expected": "2026-10-15"
    }
  ]
}