YouTube is global; your audience is not evenly distributed. Operators align publish times with when core viewers are awake, not when editing finishes.
In YouTube Analytics → Audience, note 'When your viewers are on YouTube.' Schedule premieres and Community posts around those windows.
If 60% of watch time is US Eastern, a 12:00 ET publish often beats midnight local time in Asia. Test two slots for four weeks and compare first-24-hour velocity.
Same day each week trains subscribers. Use scheduled publish so late edits do not push you to random times.