{"id":"timezone-abbreviation","summary":"Resolve a time zone abbreviation (CET, EST, JST) to its offset, region and every other meaning it has.","method":"POST","inputSchema":{"type":"object","properties":{"code":{"type":"string","description":"Abbreviation such as CEST; omit to list them all"},"at":{"type":"string","description":"ISO instant to evaluate (default: now)"}}},"exampleInput":{"code":"CST"},"exampleOutput":{"at":"2026-10-07T15:33:03.984Z","code":"CST","ambiguous":true,"meanings":[{"code":"CST","slug":"cst","region":"US central states","zone":"America/Chicago","kind":"standard","sibling":"CDT","offsetMinutes":-360,"offset":"UTC-6","activeNow":false,"time":{"hour":9,"minute":33}},{"code":"CST","slug":"cst-china","region":"China","zone":"Asia/Shanghai","kind":"fixed","sibling":null,"offsetMinutes":480,"offset":"UTC+8","activeNow":true,"time":{"hour":23,"minute":33}}]}}