The best time to post on Instagram

Three of the four lean the same way. Sprout Social’s strongest hours run from early afternoon into the evening, most of Hootsuite’s daily picks fall between 3 p.m. and 9 p.m., and five of Buffer’s seven daily winners are evening slots. Later is the outlier: its best time, 5 a.m., sits at the edge of the 1 a.m. to 5 a.m. stretch that Buffer calls the worst, and Later’s Wednesday to Friday slots fall right inside it.

The clearest agreement is Tuesday between 3 p.m. and 7 p.m. It sits inside Sprout Social’s Tuesday peak, matches Hootsuite’s Tuesday afternoon window exactly, and covers all three of Buffer’s top Tuesday hours (7 p.m., 3 p.m. and 5 p.m.). Wednesday comes close: Sprout Social’s 12 p.m. to 9 p.m. window takes in Hootsuite’s 5 p.m. and two of Buffer’s three Wednesday picks.

They disagree for ordinary reasons. Buffer ranks posts by median engagement rate (likes, comments, shares and saves divided by followers), Sprout Social counts engagements, and Hootsuite talks about engagement without saying how it was measured. The dates differ too: Sprout Social’s data runs from late November 2025 to late February 2026, holidays included, while Later’s covers January to October 2024. And each sample is a different crowd of accounts, none of them yours.

Tip: Don’t average the studies into one time. Use them to choose two or three slots to test, then let your own results decide.

Instagram’s own chart is the best free starting point, because it describes the people who follow you rather than other brands’ audiences.

1. Go to your profile and tap Professional dashboard.
2. Open Total followers.
3. Scroll to Most active times, the chart of when your followers are on Instagram, and read both the hours and the days.
4. On the same screen, check where your followers live. If most are in another country, their clock is the one that counts.

Instagram only shows these follower trends once an account has at least 100 followers. And as Buffer points out, the chart shows when your followers are using Instagram, which is not necessarily when they are most likely to engage with your posts. A busy hour is a candidate, not a guarantee.

1. Pick your slots: the busiest hour on your chart, plus one or two study windows, such as Tuesday between 3 p.m. and 7 p.m.
2. Post similar content in each slot for three to four weeks, so the topic or format isn’t what decides the result.
3. Check each post 48 hours after it goes up, so older posts don’t get a head start.
4. Compare engagement against reach (likes, comments, shares and saves divided by accounts reached) rather than raw totals.
5. Keep the winning slot, and repeat the test every few months or after a big change in who follows you.

Tip: A four-column log is enough: date, time, format and engagement after 48 hours. After a month you will either see a pattern or learn that, for your account, the hour matters less than the post.

• Reels: Buffer advises 6 p.m. to 11 p.m. for Reels, later than its overall top slots, with Wednesday and Thursday strongest. It says plainly that it analysed all post types together, so these are not Reels-only slots.
• Carousels: in Buffer’s data they followed the overall pattern (Wednesday 12 p.m. and 6 p.m., Thursday 9 a.m.), while Later’s top carousel slot was 5 a.m. on Tuesday.
• Industry: in Sprout Social’s data, food and beverage brands did best Monday to Friday from 11 a.m. to 1 p.m., earlier than the overall peaks, and financial services showed early-morning and late-night activity.
• Weekends: Sprout Social found Saturday and Sunday the lowest days, and Buffer ranked Friday and Saturday weakest. If your customers are busiest at weekends, test a weekend slot anyway.

Every study above reports local time, meaning the clock where your followers are. Buffer says its times apply as they are, whether you are on EST, PST or IST. If your followers are mostly in India, read 3 p.m. as 3 p.m. IST.

Followers split across countries need one more step: find an hour that is afternoon or evening for your two biggest groups. For an audience split between the UK and India, 1 p.m. in London is 5:30 p.m. in India while the UK is on summer time, and 6:30 p.m. in winter.