The best time to post on Instagram, according to the published data
Three companies published large studies this year. Instagram is not one of them, and none of these numbers comes from Meta.
| Study | Sample | Published | Headline answer |
|---|---|---|---|
| Buffer | 9.6 million Instagram posts | September 23, 2026 | Thursday 9 a.m., Wednesday 12 p.m. |
| Metricool | 24,364,803 posts from 375,118 accounts | 2026 Instagram Study | 6 p.m. to 9 p.m., every day |
| Sprout Social | Nearly 2 billion engagements, 307,000 profiles | 2026 analysis | Weekday afternoons, Tuesday and Wednesday best |
Each sample is made of accounts that use that company's scheduling tool. That is a specific population of businesses and creators, not Instagram as a whole.
The three tables, side by side
Every published time, by day, from all three. Times are local to your audience.
| Day | Buffer | Metricool | Sprout Social |
|---|---|---|---|
| Monday | 7 p.m. | 8 to 9 p.m. | 2 to 4 p.m. |
| Tuesday | 7 p.m. | 7 to 9 p.m. | 1 to 7 p.m. |
| Wednesday | 12 p.m. | 7 to 9 p.m. | 12 to 9 p.m. |
| Thursday | 9 a.m. | 6 to 8 p.m. | 12 to 2 p.m. |
| Friday | 10 p.m. | 6 to 8 p.m. | Weakest weekday |
| Saturday | 9 p.m. | 6 to 8 p.m. | Avoid |
| Sunday | 9 p.m. | 6 to 8 p.m. | Avoid |
Buffer's second and third slots per day fill the picture out: Monday 6 p.m. and 8 p.m., Tuesday 3 p.m. and 5 p.m., Wednesday 6 p.m. and 8 a.m., Thursday 8 a.m. and 7 a.m., Friday 9 p.m. and 6 a.m., Saturday 10 p.m. and 8 p.m., Sunday 10 p.m. and 8 p.m.
Day by day, read across all three
Where two studies point at the same block, start there. Where they scatter, the day is yours to test.
Monday. Buffer says 7 p.m., Metricool says 8 to 9 p.m., Sprout says 2 to 4 p.m. Two of three land in the evening, so evening is the first thing to try.
Tuesday. Buffer says 7 p.m., Metricool calls 8 p.m. the single highest engagement peak in its entire study, and Sprout's window of 1 to 7 p.m. reaches the edge of both. Tuesday evening has the broadest agreement on this page.
Wednesday. Buffer's best day overall, peaking at noon. Metricool says 7 to 9 p.m. Sprout's 12 to 9 p.m. covers both, which is a wide window rather than a recommendation.
Thursday. The sharpest disagreement of the week. Buffer found Thursday to be the only weekday where mornings beat evenings, naming 7 a.m. to 9 a.m. Metricool says 6 to 8 p.m. Sprout says 12 to 2 p.m. Three studies, three different parts of the day.
Friday. Buffer calls Friday one of the two weakest days and names 10 p.m. Metricool says 6 to 8 p.m. Sprout rates it below the midweek peak. If you post once a week, it should not be Friday.
Saturday. Buffer ties it with Friday as the weakest day, best slot 9 p.m. Metricool says Saturdays are just as busy as weekdays and names 6 to 8 p.m. Sprout says avoid.
Sunday. Buffer calls Sunday evening the strongest weekend window at 9 p.m. Metricool agrees on the evening at 6 to 8 p.m. Sprout still says avoid the weekend entirely.
Where the studies contradict each other
- Thursday morning. Buffer's top Instagram slot of the week sits at 9 a.m. Sprout's Thursday recommendation starts at noon, and Metricool's at 6 p.m.
- The weekend. Metricool says Saturday is as busy as a weekday. Buffer says Saturday and Friday share the weakest engagement of the week. Sprout says avoid weekends across almost all industries.
- Midday. Buffer's Wednesday peak is noon and it calls that unusual. Metricool's data puts nothing of note before the afternoon.
If you were going to copy one table, note that copying a different one would have you posting nine hours earlier on the same day.
Why large studies reach different answers
- Different account populations. Each dataset is that tool's own customers, in different countries and industries.
- Different measures. Median engagement rate, total interactions and engagement per follower rank hours differently.
- Different periods. Instagram changed what it counts and what it recommends between these studies.
- Mixed time zones. A global sample averages audiences that are never online at the same moment.
- Scheduling bias. These are posts sent through schedulers, which cluster at round hours.
Finding your own window, which is the real answer
Instagram gives you the activity of the people who already follow you, which no general study can.
- Open your profile and go to the professional dashboard, then Insights.
- Open the audience or total followers section, where follower activity by hour and day is reported.
- Write down the two hours that stay high across several days.
- Open your own best performing posts of the last 90 days and note the hour each went out.
- Compare the two lists. Where they overlap is your starting slot.
Account insights cover any period within the past 90 days, so this is a rolling picture rather than a history. How reach and views are counted in the same screens is set out in what accounts reached means.
Feed posts, Reels and stories do not share a clock
The studies above mostly measure feed posts. The three formats reach people differently, so treating them as one schedule is the mistake underneath most timing advice.
| Format | Who sees it | What timing does |
|---|---|---|
| Feed post | Followers first, plus suggestions. | Timing matters most here, because the audience is a known group with a routine. |
| Reel | Mostly people who do not follow you. | Timing matters least, because the audience is not your followers' routine but whoever Instagram recommends it to. |
| Story | Almost entirely existing followers. | Timing matters most of all, because a story is gone in 24 hours. |
So schedule stories around your followers' day, post feed content in your tested window, and spend less effort on the hour you publish a Reel. Stories can be scheduled too, as can you schedule a story on Instagram explains, and feed posts through the in app scheduler.
Posting times by audience, not by industry
Industry averages hide the only thing that matters: when your customers are free. These are hypotheses to check against your own numbers.
| Who you sell to | Likely window | What to avoid |
|---|---|---|
| Office workers | Commute, lunch, and after 8 p.m. | Mid morning. |
| Shift workers and trades | Very early, and late evening. | The standard afternoon advice, which is their working day. |
| Parents of young children | After bedtime, 8 p.m. to 10 p.m. | Late afternoon. |
| Students | Late evening, weekend afternoons. | Early mornings. |
| Local buyers | The hour before the decision, such as lunchtime for food. | Times far from the moment of purchase. |
Testing a posting time so the result means something
| Rule | In practice |
|---|---|
| One variable | Same format and topic. Only the hour changes. |
| Enough posts | At least five per slot before drawing a conclusion. |
| Rotate the slots | Cycle through four, so one good week does not decide it. |
| Judge at 30 days | Not at 24 hours, when only your followers have seen it. |
| Use medians | One post that travelled will move any average you like. |
What moves Instagram reach more than the clock
The signals Instagram publishes for ordering a feed are your activity, information about the post, previous interactions with the person posting, Threads activity and favorites, all set out in what Instagram feed means. The hour of publication is not on that list.
- Saves and shares, which are named signals and which no posting hour creates.
- Posting what people want more of, so they mark you as a favorite.
- The first line and the cover, which decide whether anyone stops.
- Posting reliably, so followers learn when to expect you.
- Answering the comments in the hour after publishing.
A schedule a business can actually keep
- Start with follower activity, not with a table from a blog.
- Choose two fixed slots a week and hold them for eight weeks.
- Use the studies only to break a tie between two hours your own data likes equally.
- Give stories their own rhythm, since they expire in a day.
- Stop optimizing the hour for Reels and put that time into the opening instead; nine ways to open a Reel covers it.
- Review at 30 days, on medians, then change one thing.
The same comparison for the other platforms is in the best time to post on TikTok and on Facebook. Running that loop weekly is what Instagram management means in practice, and the free social media audit looks at whether your gaps, rather than your hours, are what is costing you reach.
How we will test this
Not run yetEverything above comes from the published sources listed below, and nothing here is presented as something we measured. Our own test on live accounts has not been run yet.
This is the test we will run: we run a rotation on our own test accounts: the same format posted in four slots over eight weeks, judged on median reach at 30 days, and we record what Instagram's own follower activity screen shows for those accounts week by week.
Platforms change behavior without announcing it, so once the first test is run we repeat it every quarter, and this section will say when it was run and on which devices and app versions.
Sources
Read on September 23, 2026.
- Buffer, Best time to post on Instagram, 9.6 million posts, September 23, 2026
- Metricool, Best times to post on Instagram, 24,364,803 posts from 375,118 accounts
- Sprout Social, Best times to post on Instagram, 2 billion engagements
- Instagram Help Center, How Instagram Feed works
- Instagram Help Center, About Instagram insights
Questions people ask next
What is the best time to post on Instagram?+
The studies disagree. Buffer's 9.6 million posts point to Thursday 9 a.m. and Wednesday 12 p.m., Metricool's 24 million to a 6 p.m. to 9 p.m. block every day, and Sprout Social to weekday afternoons.
What is the best day to post on Instagram?+
Buffer and Sprout both point to midweek, Wednesday and Tuesday. Buffer names Friday and Saturday as the weakest days, while Metricool says Saturday is as busy as a weekday.
Is the evening really better?+
Two of the three studies say so. Metricool puts the peak block at 6 p.m. to 9 p.m., and Buffer's slots are in the evening on five of seven days.
Does Instagram publish a best posting time?+
No. Its published feed signals are your activity, information about the post, previous interactions, Threads activity and favorites. The hour is not among them.
Where do I see when my followers are online?+
In Insights, under the audience or total followers section, which reports follower activity by hour and day. Account insights cover the past 90 days.
Does posting time matter for Reels?+
Less than for anything else. Reels are recommended to people who do not follow you, so your followers' routine has less to do with who sees them.
Does posting time matter for stories?+
More than for anything else, because a story disappears after 24 hours and is seen almost entirely by existing followers.
How long should I test a posting time?+
At least five posts per slot across eight weeks, compared on medians at 30 days.
Should I post more often instead?+
Consistency beats precision. A schedule you can hold for three months does more than the perfect hour you miss half the time.
Why do these studies contradict each other?+
Different account populations, different measures of engagement, different months, and mixed time zones. None of them is Instagram's own data.
What is the best time to post on Instagram today?+
Nobody can answer that for your account, and the studies that try disagree with each other by hours. Your own follower activity chart, read over four weeks, is the only source that is about your audience. The studies are in the tables above, with what each one measured.