Effective May 15, 2014, the operating hours of Falcon Field ATCT will change. The tower will be in operation from 5:30 AM local time (1230 UTC) until 9:00PM local time (0500 UTC), annually from May 15 through August 15.
Concurrent with this change, the effective hours of the Falcon Field (Mesa) Airport Class Delta airspace will change to 5:30AM local time (1230 UTC) until 9:00 PM local time (0500 UTC), annually from May 15 through August 15.
Download the full Letter to Airmen for all the details. (PDF, requires Adobe Reader.)