A.R.S. § 42-18112: Time of sale

A. The tax lien sale shall be held in February.

B. On the day designated in the list and notice, the county treasurer shall begin the sale of all tax liens on real property that is described in the list and notice on which the taxes and charges have not been paid. The county treasurer shall continue the sale from day to day, Sundays and holidays excluded, until the tax lien on each parcel has been offered for sale and no more bids are offered by purchasers.