Hey Midget 16UAA parents... you're all being blatantly ripped off by CAHA. Your games should be (2) 25-minute periods... not (2) 20-minute periods. It's printed and published in the CAHA 2017-2019 Guidebook.
Here is the rule:
On Page 31:
9.9 CAHA TIER II FLIGHT SYSTEM ADMINISTRATIVE GUIDELINES:
6) Evaluation Jamboree format will be 1-hour mini game slots, with a 3-minute warmup, (2) 25-minute runtime periods, and a 1-minute intermission between periods.