(a) Signers.--Each signer of a petition under section 11051 (relating to petition and reconsideration of ordinance) shall also do all the following:
(1) Include the signer's address.
(2) Make an oath before the city clerk or other person authorized under section 11053 (relating to additional petitions) that the signer:
(i) Is a qualified elector of the city.
(ii) Resides at the address given.
(b) Office hours.--The city clerk shall keep the city clerk's office open, at a minimum, from 9 a.m. through 7 p.m. Monday through Friday, except holidays, for the purpose of receiving signatures to the petitions. The city clerk shall not permit an individual to sign a petition after 7 p.m. of the tenth day following the enactment of the ordinance on which the referendum vote is requested.