Sunday at 9 AM.Or midweek, 2 to 6 PM.

It depends on the study. Buffer’s 2026 study of 7.1 million TikTok posts finds Sunday at 9 AM best, then Monday at 1 PM and Sunday at 1 PM. Sprout Social’s 2026 study of nearly 2 billion engagements finds Tuesday to Thursday from 2 to 6 PM best. Both are in your local time.

Buffer finds Saturday best, then Monday and Sunday, and Wednesday weakest. Sprout Social finds Tuesday, Wednesday and Thursday best, and Sunday worst.

They measure different things on different accounts. Buffer ranks each hour by the median engagement rate of the posts sent then through Buffer. Sprout Social shades the week by engagement on its own customers’ profiles. Neither audience is yours.

Your own. Buffer’s chart is in local time, adjusted so its times work anywhere without converting. Sprout Social lists local time too: post at its hours in your audience’s time zone.

Neither study publishes its numbers, only a shaded week, so each hour here is read from the shade of the study’s own chart: 100 is its darkest hour. Buffer’s chart covers 6 AM to 10 PM, so its night hours are empty. Sprout Social shades its week in seven steps.

In TikTok Studio, open Analytics, then Followers: it shows when your followers were most active. Post at those hours for a few weeks, compare each post with your usual, and keep what works. Your own results beat any study.