{"resource":"https://datetime.openverbs.com/v1/add","service":"Add a duration to a date","areas":["other"],"answering":true,"http_status":402,"latency_ms":399,"price_usdc":0.002,"buyers_30d":2,"calls_30d":2,"description":"Add an ISO 8601 duration to a start date or date-time and return the resulting UTC instant. Calendar-aware: months and years honor month lengths (e.g. Jan 31 + P1M clamps to the last day of February). A negative-signed duration subtracts.","id":"c789941d71fd","category":"Unclassified","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/c789941d71fd"}