In Chile the Daylight saving time now is the official time. The tzdata package in our wasn't updated, so Airtime changed the timezone from -3.00 to -4.00.
I had updated the package, but Airtime moved one hour earlier all the blocks in the calendar !
What can I do? There is a way to mass-move all the programs one hour?
One of your 4 clocks time zones is wrong. Hardware, Unix (software), Airtime Station Clock and Airtime User Clock. My money is on the Clock Time Zone in the Airtime User Panel.