What is the best day to post on X?

Tuesday to Thursday; both Buffer’s 2026 study (8.7M posts) and Sprout Social’s 2026 study favour those days.

What is the worst time to post on X?

Buffer finds Saturday and Friday weakest, and evenings 6–11pm underperforming; Sprout Social finds weekends worst.

Why don’t the studies agree on the exact hour for X?

Buffer favours weekday mornings (9–11am) and Sprout Social favours 12–6pm; they use different samples and periods, so test both against your own audience.

Is the best time to post on Twitter the same as on X?

Yes — X is the renamed Twitter, and the studies cited on this page (Buffer, Sprout Social) both track the same platform under its current name.

Does the best time to post on X change on a specific day like Thursday or Monday?

Both studies point to Tuesday through Thursday as the strongest window overall, rather than singling out one specific weekday as uniquely best — start there and compare a morning slot against an afternoon one for your own account.

Best time to post on X

All guides

By The SkedCast Team · Updated 23 September 2026 · 5 min read

Key takeaways

Buffer (8.7M posts) and Sprout Social both favour Tuesday to Thursday on X; the hour differs (9–11am versus 12–6pm).
Published studies show the general pattern, but your own audience’s activity is the more reliable signal — test and compare.

Best time to post on X: what the two studies show

Buffer (13 Mar 2026; 8.7 million posts): top slots Tuesday 9am, Wednesday 10am and Wednesday 9am; best days Wednesday, Tuesday and Thursday; weekday 9–11am the most reliable window; Saturday and Friday and evenings 6–11pm the weakest
Sprout Social (31 Mar 2026): best days Monday to Thursday; best times Tuesday to Thursday 12–6pm; weekends worst

A consistent day, a variable hour

The day-of-week finding holds across both studies: midweek outperforms the weekend. The hour is where they part, with Buffer favouring the morning and calling evenings weakest and Sprout Social favouring the afternoon, so test both windows.

How to apply this

Start Tuesday to Thursday, compare a 9–11am slot with a 12–6pm slot on your own account, and keep the better one.

Sources

Figures are from the studies named above, read on 23 September 2026. The fuller guide lists each source and covers how often to post.

best time to postplatform

FAQ

What is the best day to post on X?: Tuesday to Thursday; both Buffer’s 2026 study (8.7M posts) and Sprout Social’s 2026 study favour those days.
What is the worst time to post on X?: Buffer finds Saturday and Friday weakest, and evenings 6–11pm underperforming; Sprout Social finds weekends worst.
Why don’t the studies agree on the exact hour for X?: Buffer favours weekday mornings (9–11am) and Sprout Social favours 12–6pm; they use different samples and periods, so test both against your own audience.
Is the best time to post on Twitter the same as on X?: Yes — X is the renamed Twitter, and the studies cited on this page (Buffer, Sprout Social) both track the same platform under its current name.
Does the best time to post on X change on a specific day like Thursday or Monday?: Both studies point to Tuesday through Thursday as the strongest window overall, rather than singling out one specific weekday as uniquely best — start there and compare a morning slot against an afternoon one for your own account.