Hours Of Operations Clarks California Altadena 91001 Clarks Hours of Operation and Location in Altadena, CA 91001 4.1 - 97 votes 2674 Mcnally Ave, Altadena, CA 91001 (626) 574-6991 Get Directions Clarks Hours Category: Accessories Electronics Shoes Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore AltadenaView More Apparel DebAvenue Sports Vans24 Hour Fitness Jewelry Avon Recommend For You Ace Hardware Avon Boost Mobile MetroPCS GNC Ecco 24 Hour Fitness Shaw's Flor SIMPLE Mobile