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GET /v1/diff

Difference between two dates

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/datetime-api

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Code snippets

curl "https://api.oanor.com/datetime-api/v1/diff" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/datetime-api/v1/diff", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/datetime-api/v1/diff");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/datetime-api/v1/diff",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "to": "2026-05-30T00:00:00.000Z",
        "from": "2026-01-01T00:00:00.000Z",
        "unit": "days",
        "human": "4 months, 27 days",
        "value": 149
    },
    "meta": {
        "timestamp": "2026-05-30T09:00:23.222Z",
        "request_id": "e62ac9eb-557b-4009-ada9-6e7f9c955d9c"
    },
    "status": "ok",
    "message": "OK",
    "success": true
}