app/node_modules/date-fns/esm/parse/_lib/constants.js

export var numericPatterns = {
  month: /^(1[0-2]|0?\d)/,
  // 0 to 12
  date: /^(3[0-1]|[0-2]?\d)/,
  // 0 to 31
  dayOfYear: /^(36[0-6]|3[0-5]\d|[0-2]?\d?\d)/,
  // 0 to 366
  week: /^(5[0-3]|[0-4]?\d)/,
  // 0 to 53
  hour23h: /^(2[0-3]|[0-1]?\d)/,
  // 0 to 23
  hour24h: /^(2[0-4]|[0-1]?\d)/,
  // 0 to 24
  hour11h: /^(1[0-1]|0?\d)/,
  // 0 to 11
  hour12h: /^(1[0-2]|0?\d)/,
  // 0 to 12
  minute: /^[0-5]?\d/,
  // 0 to 59
  second: /^[0-5]?\d/,
  // 0 to 59

  singleDigit: /^\d/,
  // 0 to 9
  twoDigits: /^\d{1,2}/,
  // 0 to 99
  threeDigits: /^\d{1,3}/,
  // 0 to 999
  fourDigits: /^\d{1,4}/,
  // 0 to 9999

  anyDigitsSigned: /^-?\d+/,
  singleDigitSigned: /^-?\d/,
  // 0 to 9, -0 to -9
  twoDigitsSigned: /^-?\d{1,2}/,
  // 0 to 99, -0 to -99
  threeDigitsSigned: /^-?\d{1,3}/,
  // 0 to 999, -0 to -999
  fourDigitsSigned: /^-?\d{1,4}/ // 0 to 9999, -0 to -9999
};

export var timezonePatterns = {
  basicOptionalMinutes: /^([+-])(\d{2})(\d{2})?|Z/,
  basic: /^([+-])(\d{2})(\d{2})|Z/,
  basicOptionalSeconds: /^([+-])(\d{2})(\d{2})((\d{2}))?|Z/,
  extended: /^([+-])(\d{2}):(\d{2})|Z/,
  extendedOptionalSeconds: /^([+-])(\d{2}):(\d{2})(:(\d{2}))?|Z/
};