Short Final: Squawk Time

My student and I were nearing the Class C airspace at Palm Beach International airport (KPBI). We asked for clearance.

Palm Beach Approach: "Cessna Five Tango Papa, squawk 1454."

This was odd since local squawks always start with 02. But we set what we were given.

Approach (about 30 seconds later): "Cessna Five Tango Pop, verify squawking 0227."

Us: "Approach, we were given 1454 on the squawk."

Approach: "Uh, Cessna Five Tango Pop, squawk 0227. 0227."

Us: "0227, Cessna Five Tango Papa."

Approach: "I must have given you the time."

Sure enough, my watch showed 1454Z.

Us: "Well, now we have the right squawk and the right time!"