Order unanimously affirmed without costs. Memorandum: On November 5, 1991 an election was held for the office of Town Councilman of the Town of Wheatfield. Following a canvass of the vote, the Board of Elections certified the election as a tie. Petitioner, a candidate for the office, commenced the instant proceeding pursuant to article 16 of the Election Law, challenging the Board's refusal to cast and count one absentee ballot. Supreme Court dismissed the petition on the ground that the proceeding was not timely commenced.
We affirm, but for a different reason. The proceeding, instituted within 20 days of the Board's determination, was timely (see, Election Law § 16-106). However, the absentee ballot was received after election day and the postmark date could not be ascertained without extrinsic evidence (see, Matter of Bennett v Board of Elections, 10 Misc.2d 804, 810, affd 6 A.D.2d 989, lv denied 5 N.Y.2d 708). Therefore, the ballot cannot be counted (see, Election Law § 8-412; Matter of Nicolaysen v D'Apice, 100 A.D.2d 501).