Best time to post on Instagram

How to use the Instagram heatmap

The grid below is a benchmark, not your account. Use it to pick candidates and then let your own numbers settle the argument, because Instagram hands professional accounts a follower-activity chart that this page cannot see.

1. 1Set the timezone control to wherever the bulk of your audience lives. If that is not where you live, resist the pull of your own clock: you are scheduling around their day, not yours.
2. 2Read the bands rather than the digits. The scale is relative, with the busiest cell of the week fixed at 100, so the gap between a 78 and an 81 is noise and the gap between a 78 and a 30 is not.
3. 3Shortlist two or three candidate slots out of the warm band instead of one. A single slot gives you nothing to compare itself against.
4. 4Split the decision by format. A Story expires after 24 hours, so its slot sets a hard ceiling on who can ever see it, while a Reel keeps collecting views for days and cares far less about the hour you pressed publish.
5. 5Run each candidate for three or four weeks with the format held constant, and compare feed posts against feed posts only. Mixing a Reel week into a photo week tells you about the format, not about the slot.
6. 6Compare on the median post, not the best one. A single outlier proves nothing about a slot, and on Instagram it is the typical post that tells you whether the slot is working.

How Instagram actually distributes a new post

Instagram stopped showing the main feed in reverse chronological order back in 2016, and what replaced it treats your publishing time as one input among many rather than the thing that decides who sees you.

• A Following feed and a Favourites feed both still exist and both are chronological, but they sit behind a tap at the top of the app rather than being what opens. Assume only a slice of your audience is reading you in posting order.
• Reels are pushed hard to people who do not follow you, which is why a Reel keeps collecting views for days. Feed posts lean much more on people who already follow you, so their reach is largely settled closer to the hour you published.
• Stories are the format where the clock genuinely binds. They disappear after 24 hours, so an overnight Story does not reach a different audience, it reaches a smaller one.
• Professional accounts get a most-active-times breakdown in Insights, split by hour and by weekday. It records when your followers open the app rather than when they engage, but it is your audience instead of an average of everybody else’s.

What this heatmap cannot tell you

Posting-time advice is one of the most confidently stated and least well evidenced things in social media, so here is exactly what sits behind this particular heatmap.

• The grid is interpolated. Published studies report peak windows and strong weekdays, not a measured value for each of the 168 hours in a week, so the shape here is a curve drawn through a handful of known points.
• Every cell is relative. The strongest hour of the week is normalised to 100 and the rest are scored against it, so a 60 means roughly three fifths as busy as the best cell, not a percentage of anything.
• One curve cannot be right for a Story and a Reel at once. Treat the warm band as a hypothesis for Stories and feed posts, and treat Reels as much more forgiving.
• Benchmarks average accounts unlike yours. A bakery with a local following and a fitness account with an international one do not peak at the same hour, and neither of them is wrong.

What moves Instagram reach more than the hour does

If you are choosing between spending an afternoon tuning your posting slot and spending it on the first three seconds of a Reel, spend it on the Reel. The slot is a tiebreaker; the opening frame is the constraint.

• Judge a Reel over a week, not an hour. One that looks flat the evening you post it can be your strongest of the month by the following Thursday, and killing a slot on first-hour numbers will mislead you.
• Keep the schedule steady rather than perfect. A consistent slot gives you comparable weeks; a slot that moves every time gives you noise you cannot read.
• If your followers straddle Europe and the Americas, no single slot serves both. Pick the region that actually matters to you and accept the compromise, rather than averaging the two into a slot that suits nobody.