How we work out the days left
For each MV we take its total views and the next round number: 10, 20, 30, 40 or 50 million, every 100 million up to 1 billion, then every 500 million. Only MVs with more than 5 million views that would get there in 30 days or less at today's pace are listed.
We count the days two ways: with the views gained in the last 24 hours and with the daily average of the last 7 days. Today's pace reacts straight away to a release or a spike; the weekly pace is steadier. The list is sorted by the 7-day pace.
These are K-Pulso estimates, not official YouTube figures: the pace can speed up or slow down and the date can shift from one day to the next. Total views do come from YouTube, and the page updates every day.