Best time to post calculator.
Pick a day and see what Hootsuite, Buffer, and Sprout Social each recommend for Instagram Reels, with an agreement badge showing where they line up and where they conflict, and every window converted to your own posting clock.
In short: this best time to post calculator shows what Hootsuite, Buffer, and Sprout Social each recommend for your day of the week, side by side, instead of one blended guess. The three sources often disagree, sometimes sharply, so seeing all three at once tells you whether a window is safe to trust or worth testing yourself first. Pick a day, set your audience's time zone, and post inside the window with the most cross-source agreement. Free, runs in your browser, no login.
Best time to post on Instagram, by day. Three published benchmarks compared side by side, converted to your time zone.
Midweek is strongest across all three sources; the weekend is weakest. Every day is listed below.
Saturday · Weakest of the week
Sources disagreeThe weakest day: Buffer names Friday and Saturday its two worst, and Sprout measures Saturday as the lowest-engagement day of the week. The two sources that name hours point at different halves of the day, and Buffer says the evening is the only reasonable one, so treat Hootsuite's daytime slots with caution. Hold high-value posts for the working week.
Why the sources differ: Hootsuite points at midday and late afternoon, Buffer only at the evening, and Sprout names no window at all.
The only source naming a daytime Saturday window
Buffer ranks Saturday among its weakest days, with the evening the only reasonable window
Sprout's lowest-engagement day
What each source actually says about Saturday
Quoted from each published page so you can check we read it correctly. Follow any source link and confirm the wording yourself.
| Source | Recommended window | What the page says | Confidence |
|---|---|---|---|
| Hootsuite | 11 a.m. and 5 p.m. | The best time to post on Instagram on Saturday is at 11 AM and around 5 PM. | Names a specific window |
| Buffer | 8-10 p.m. | Saturday: 9 p.m., then 10 p.m. or 8 p.m. | Names a specific window |
| Sprout Social | Lowest day, no peak | the lowest overall engagement of the week | Names no window for this day |
- Hootsuite:
- Hootsuite with Critical Truth, over 1 million social posts. No account count, geography or validation method is published, which makes it the least specified of the three. Read 31 August 2026.
- Buffer:
- 9.6 million Instagram posts from more than 200,000 accounts, January 2024 to December 2025, from Buffer's State of Social Engagement 2026. Read 31 August 2026.
- Sprout Social:
- Nearly 2 billion engagements across roughly 307,000 social profiles, with peak windows measured between 27 November 2025 and 27 February 2026. Read 31 August 2026.
Windows are in your audience's local time. Set a different ‘your time zone’ above if you post from another region and each window will also show when to post on your own clock.
Every day of the week, side by side
What each benchmark source says for all seven days, in your audience's local time. Use the calculator above to convert any window to your own clock.
| Day | Hootsuite | Buffer | Sprout Social | Sources agree? |
|---|---|---|---|---|
| MondayStronger than its reputation | 3-9 p.m. | 6-8 p.m.Safer pick | 2-4 p.m. | Partial agreement |
| TuesdayStrong | 5-8 a.m. and 3-7 p.m.Safer pick | 3-7 p.m. | 1-7 p.m. | Strong agreement |
| WednesdayStrongest overall | 5 p.m. | 12 p.m. and 6 p.m.Safer pick | 12 p.m.-9 p.m. and 11 p.m. | Strong agreement |
| ThursdayStrong, three windows | 4-5 p.m. | 9 a.m. | 12-2 p.m.Safer pick | Partial agreement |
| FridayOne of the two weakest days | 4 p.m.Safer pick | 9-10 p.m. | No peak hours | Sources disagree |
| SaturdayWeakest of the week | 11 a.m. and 5 p.m.Safer pick | 8-10 p.m. | Lowest day, no peak | Sources disagree |
| SundayMost contested | 12-3 p.m.Safer pick | 8-10 p.m. | Among the worst, no peak | Sources disagree |
Windows are in your audience's local time. These are published benchmarks, not your account - confirm the winner against your own posts.
Sources: Hootsuite, Buffer, Sprout Social. Each window was read from the published page rather than summarised from memory.
How to use this best time to post calculator
- 1
Pick the day you're posting - it defaults to today, and each day pulls the specific windows Hootsuite, Buffer, and Sprout Social named for it.
- 2
Compare the three source windows side by side, plus the agreement badge, and set your time zone to convert each to your own clock.
- 3
Post in the highest-agreement window, or on contested days like Sunday, test the outlier against your own account data.
What is the best time to post calculator?
Most 'best time to post' tools quietly pick one benchmark study, run the math, and hand you a single confident-sounding hour. This calculator does the opposite: it puts three of the most-cited 2026 studies, Hootsuite's data, Buffer's 9.6-million-post analysis, and Sprout Social's engagement benchmarks, next to each other for the day you select, and shows an agreement badge for where they converge and where they don't. That matters because they disagree more than most single-source tools admit. On Tuesday all three land in the same late afternoon, the tightest overlap of the week. On Sunday, the back half of Buffer's best window falls inside the evening hours Hootsuite says to avoid, while the front half does not, and Sprout Social does not recommend posting at all. A tool that averaged those into one number would be quietly guessing; this one shows the real disagreement so you can decide whether to trust the consensus or test it. Set your audience's time zone and it converts each window to your own posting clock. It is a starting point for accounts too new to have their own Instagram Insights yet, and once you have a few weeks of your own numbers, those beat any benchmark, including this one.
Common use cases
Schedule a specific day's Reel - select the day and see all three sources' windows before you publish.
Build a week of posts around Tuesday through Thursday, the days with the most cross-source agreement.
Decide whether a weak day like Saturday is worth posting on at all, where Sprout Social names no window and Buffer says the evening is the only reasonable one.
Spot-check a creator's 'always post at 9 p.m.' advice against which source (if any) actually backs it that day.
Convert an audience-local window to your own posting time when you and your audience are in different regions.
Frequently asked questions
What's the best time to post on Instagram today?
It depends on the day, since Hootsuite, Buffer, and Sprout Social each name different windows and don't always agree. This calculator shows today's specific answer at the top of the page, pulling from all three sources side by side. As a starting point, Wednesday is the strongest day, the one Buffer and Sprout Social each independently name their number one; Friday through Sunday are the days sources disagree most, so check the live comparison above rather than relying on a single 'always post at X' rule.
Why does this calculator show three different answers instead of one?
Because Hootsuite, Buffer, and Sprout Social genuinely disagree on several days, most sharply on Sunday, where the back half of Buffer's best window falls inside the evening hours Hootsuite says to avoid. Averaging them into a single number would hide that disagreement instead of helping you navigate it.
Which source should I trust most?
None of them universally, it depends on the day. On Wednesday, Buffer and Sprout Social converge tightly, which is a strong signal. On Friday and Sunday the sources diverge enough that testing your own account's data is more reliable than picking one source over another.
Is there a single best day to post on Instagram?
Wednesday, based on the current data. It is the one day Buffer and Sprout Social both independently name the strongest, with no meaningful disagreement between them: Buffer names noon and 6 p.m., and Sprout's peak block runs noon to 9 p.m., so Buffer's picks sit inside Sprout's.
What does the time zone setting do?
The benchmark windows are in your audience's local time. If you post from a different region than your audience, set both time zones and the calculator converts each window to when you should post on your own clock.
Does the calculator cover TikTok as well as Instagram?
Not yet. Hootsuite, Buffer, and Sprout Social's day-by-day breakdowns are Instagram-specific, and this calculator only shows validated data, it does not stretch Instagram windows onto TikTok just to fill a column. A TikTok-specific version comes once equivalent day-by-day source data exists.
Is this calculator free and does it need a login?
Yes, completely free, no account, no connected profile. It runs in your browser, so your day and time-zone choices never leave your device.
Will this beat checking my own Instagram Insights?
No, and it is not meant to. These are aggregate 2026 benchmarks across many accounts. Once your own account has a few weeks of post history, your Insights reflect your specific audience better than any external study. Use this calculator until you have that, then switch.
Not sure when to post?
Reelyze shows when your niche actually posts and what performs, so you can stop guessing your schedule. Every paid plan starts with a 3-day free trial.
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