When is the latest to eat for Tsom Gedaliah in Israel. The clock changes tonight here in Israel.
It is permitted to eat until alos ha-shachar.
According to the more lenient opinion, alos ha-shachar is around 4:20am (winter time), with slight variations depending on precise location.
Although there is another opinion, according to which alos ha-shachar is considerably earlier (around 3:35), the common custom is to follow the later time, and this can be relied on for Tzom Gedaliah.