There is no set deadline by which a petition for issuance of a writ of certiorari must be filed.\u00a0 Even in the absence of a specific deadline, a petition for issuance of a writ of certiorari must be filed within a reasonable time.\u00a0 See<\/i> Davis v. Rhode Island Bd. of Regents<\/i>, 399 A.2d 1247, 1249 (R.I. 1979) (petition will not be granted when there is an unreasonable and unexplained delay in seeking relief).\u00a0 Of course, any delay in seeking issuance of the writ will undercut an argument that the writ is \u201cnecessary to avoid great injury or unusual hardship which would result from the delay involved in pursuing such other adequate remedy.\u201d\u00a0 White v. White<\/i>, 36 A.2d 661, 663-64 (R.I. 1944).\u00a0 Although the \u201creasonable time\u201d deadline for filing a petition for writ of certiorari is longer than the 20-day deadline for the filing of an appeal, a petition for writ of certiorari is not a substitute for an untimely appeal.<\/p>\n