Nevada Revised Statutes
Chapter 189 - Justice Courts
NRS 189.010 - Appeal must be taken within 10 days.

Except as otherwise provided in NRS 177.015, a defendant in a criminal action tried before a justice of the peace may appeal from the final judgment therein to the district court of the county where the court of the justice of the peace is held, at any time within 10 days from the time of the rendition of the judgment.
[1911 Cr. Prac. § 662; RL § 7512; NCL § 11309]—(NRS A 1995, 1536)