{"slug":"api-duoleads-com-v1-time-dst-f824dc","title":"List the daylight-saving transitions for an IANA time zone over a date range","host":"api.duoleads.com","method":"GET","resource":"https://api.duoleads.com/v1/time/dst","category":"other","description":"List the daylight-saving transitions for an IANA time zone over a date range: the exact instant of each shift, the offset before and after, and whether local clocks jump forward or back. Returns the current offset and DST state, and the next transition from a given instant. Zones without DST return ","price_listed":0.05,"price_asked":0.05,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":22,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"from":"2026-01-01","years":"1","zone":"Europe/Amsterdam"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"from":{"description":"Start of the range: RFC 3339 or YYYY-MM-DD. Default now.","maxLength":64,"type":"string"},"years":{"default":"2","description":"Length of the range in years, 1-10. Default 2.","maxLength":64,"pattern":"^[+-]?\\d+$","type":"string"},"zone":{"description":"IANA time zone id.","maxLength":64,"type":"string"}},"required":["zone"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"properties":{"data":{"type":"object"},"meta":{"properties":{"computed_at":{"type":"string"},"deterministic":{"type":"boolean"},"disclaimer":{"type":"string"},"price_usd":{"type":"string"},"request_id":{"type":"string"},"sources":{"type":"array"}},"required":["request_id","computed_at","price_usd","deterministic","disclaimer"],"type":"object"},"ok":{"const":true,"type":"boolean"},"route":{"type":"string"},"version":{"type":"string"}},"required":["ok","route","version","data","meta"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-29","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.05,"price_match":true,"latency_ms":22,"error":null}],"description_full":"List the daylight-saving transitions for an IANA time zone over a date range: the exact instant of each shift, the offset before and after, and whether local clocks jump forward or back. Returns the current offset and DST state, and the next transition from a given instant. Zones without DST return an empty transition list rather than an error.","last_updated":"2026-09-28T23:37:36.859Z","schemes":["exact"]}