YouTube trending in Japan

YouTube rebuilds its trending chart roughly every fifteen minutes and this page reads it on the same cycle. The exact minute the chart was read is printed above the list, so you can see how old the board in front of you is rather than trusting a badge.

Because the chart is not a view count leaderboard. YouTube ranks trending on how fast a video is gaining views, how new it is, where those views come from and how it performs against the channel's own recent uploads. A two-day-old video with ten million views can sit below a six-hour-old video with two hundred thousand, and the views per hour column on this page is the closest visible proxy for why.

YouTube builds a separate chart per market, and it is genuinely separate rather than a filter on one global list. Music dominates some markets and gaming or news dominates others, which the category mix under the board makes visible. There is no worldwide YouTube trending chart to show.

The video's view count divided by the hours since it was published. It is a rough measure of velocity and nothing more: views are not distributed evenly across a video's life, so a video that had a huge first hour and then flattened reads the same as one climbing steadily. It is shown because it is the only velocity signal the public chart data supports, and it is omitted for anything under an hour old.

Use it to read the shape of a market, not to copy a video. The useful signal is the category mix and the median age of what is charting: a chart full of six-hour-old news clips and a chart full of week-old music videos are telling you two different things about how fast that audience moves. Chasing an individual trending video is a race you enter after it has started.