{"id":"iso-date-nth-weekday-of-month","version":"1.0.0","description":"Return the date of the nth occurrence of an ISO weekday within a calendar month.","supported_operations":["iso date nth weekday of month","third monday of month","nth weekday in month"],"unsupported_operations":["negative indexing (use iso-date-last-weekday-of-month)","timezones","locale weekday names"],"semantics":["year is a JSON integer 1-9999, month is a JSON integer 1-12.","weekday is a JSON integer 1-7 with Monday=1 .. Sunday=7. n is a JSON integer 1-5.","Returns the date of the nth time that weekday occurs in that calendar month, counting from the first day of the month.","Rejected if the month does not have an nth occurrence of that weekday (for example a 5th Monday in a short month)."],"limits":{"year_min":1,"year_max":9999,"n_min":1,"n_max":5},"pricing":{"status":"unpriced","charge_usd":null},"input_schema":{"type":"object","additionalProperties":false,"required":["year","month","weekday","n"],"properties":{"year":{"type":"integer","minimum":1,"maximum":9999},"month":{"type":"integer","minimum":1,"maximum":12},"weekday":{"type":"integer","minimum":1,"maximum":7},"n":{"type":"integer","minimum":1,"maximum":5}}},"output_schema":{"type":"object","additionalProperties":false,"required":["date"],"properties":{"date":{"type":"string","minLength":10,"maxLength":10}}},"examples":[{"input":{"year":2026,"month":9,"weekday":1,"n":3},"output":{"date":"2026-09-21"}}],"execute_url":"/v1/tools/iso-date-nth-weekday-of-month/versions/1.0.0/execute"}