Just checking a couple of local airports to me and noticed that every airport on the Central California coast shows EVERY scheduled and actual arrival/departure time in either EDT or CDT regardless of where the other airport is actually at. Click on a particular aircraft and it’s page is normal. Followed several links to other airports out of the area and they were normal.
KSBA, KSBP, KSMX, KIZA, KLPC, also tried KVBG but no activity is shown.
If you convert EDT to PDT the times are about right.
follow up: Some of the above airports show PDT some of the time. Also if you go to, say, LAX or SFO and look for a flight to/from any of the above the times on that page they are normal.
Please change L52 to pacific time, thanks.