Far as I know, this objection in no way can push the Constitutionally mandated date of Jan 6 back 10 (or any other # of) days.
Love that Cruz and others are finally putting a stake in the ground to at least get some awareness of just how corrupt and fraudulent this election was. But it will change nothing in terms of the “votes” being counted on 1/6, and what the outcome (Biden “won”) will be - UNLESS at least 3 state legislatures decertify their original vote before 1/6, which is highly unlikely to happen.
I do believe the only date mandated in Constitution is Jan 20