The accompanying photo provides the flyover times for the Israel Airforce, which passes over many cities and municipalities on Independence Day in Israel, which is observed on Wednesday night and Thursday this year.
Independence Day, 5 Iyar, falls on erev Shabbos this year. This is why the days were pushed back, making Memorial and Independence Days a day earlier to avoid Chilul Shabbos.
(YWN Israel Desk – Jerusalem)