{
  "$id": "LocalDate.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "string",
  "format": "date",
  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$",
  "description": "ISO 8601 date."
}