Best time to post on YouTube for a United States audience

Six time zones, four of them in the contiguous states — Eastern, Central, Mountain and Pacific — plus Alaska and Hawaii. A single national posting time does not exist: the east and west coasts are always three hours apart, and Hawaii is a further three behind.

Arizona and Hawaii do not observe daylight saving. Arizona keeps Mountain Standard all year, so for half the year it reads as Mountain and for the other half it matches Pacific — which is exactly the case a remembered offset gets wrong.

Clocks move on the second Sunday in March and the first Sunday in November, which shifts the whole country against every audience outside North America twice a year. Those dates do not line up with Europe's, so there are two weeks each spring and autumn when the usual difference is simply wrong.

There is no public dataset of the best times to post on YouTube. The figures that circulate come either from one scheduling vendor’s own customers or from other articles quoting each other, and none of them know anything about your channel. So this page does not start from a table of best times. It starts from two things that can be argued with:

One — people watch on a schedule. Not a precise one, but a real one: a large block of attention in the evening once work and school are done, a smaller one around lunch, and a later, flatter shape at the weekend. That is stated in the audience’s own local time, which is the only frame in which it means anything.

Two — a video needs a head start. Publishing at the exact moment your audience arrives means arriving with nothing: no watch time, no click-through, nothing for YouTube to judge it on while the audience is actually there. Publishing earlier means the peak finds a video that already has signal.

The recommendation is the second applied to the first: take the window when the audience shows up, and move backwards by the head start the format needs.

• Long-form video. Published about two and a half hours before the audience arrives. Long-form is surfaced by search, suggested videos and subscriptions, all of which react to early watch time — so it helps to already have some when the peak starts. It also leaves room for processing to finish, which on a long upload is not instant.
• Shorts. Published about forty-five minutes ahead. The Shorts feed leans on freshness far more than search does, so a long head start works against you. Short enough to still be new when the peak arrives, long enough to be processed and in circulation.

Everything after that is arithmetic — and the arithmetic is the part creators actually get wrong, because the gap between two countries is not a fixed number. It changes when either side puts its clocks forward, and those dates do not line up. This page recalculates it every time you open it rather than storing an offset. More on why that matters.