Your viewers are not on your clock
A video that goes up at 9 in the morning in Tel Aviv lands at 2 in the morning in New York.
We would rather spend the first hours of a post on people who are awake.
Daylight saving is the trap
Countries change their clocks on different dates, and some never change them.
The United States moves a few weeks before Europe in spring and a week after it in autumn, and Israel keeps dates of its own.
For those weeks the gap between two cities is an hour off what you are used to.
The clock here reads every city's rules from your browser's own time-zone data, the same data your phone uses, so those weeks come out right.
Finding a good moment
Use "Plan a moment": pick a time in one city, and every pinned city shows its own.
Look for the hour when your two biggest audiences are both awake.
For Europe and the US east coast that is usually early afternoon in London - the morning in New York.