The Best Time to Post: Should a Tool Decide for You?
Those "best time to post" heat maps are averaged from millions of accounts that have nothing to do with yours, which is exactly why they're so often confidently wrong. Here's when to let a scheduling tool pick your slot, when to back your own judgement instead, and the one question worth asking before you trust the sparkle icon.
Dave Smith
# The Best Time to Post: Should a Tool Decide for You?
Somewhere in the back of your mind, there's a number. 11am on a Tuesday, maybe. Or 7pm, because that's when everyone's on the sofa. You've seen the infographic — the heat map with deep red squares for peak engagement and pale blue for the wasteland of Sunday morning. And now, every time you go to post something at the wrong hour, a small voice says: *this'll flop, you've missed the window.*
Let's deal with that voice, because it's costing you more posts than it's ever saved you.
Where those "best times" actually come from
The heat maps aren't made up. They're usually built from millions of posts across thousands of accounts, aggregated and averaged into something tidy. Which is precisely the problem.
An average drawn from a global dataset tells you when *the internet* is awake. It doesn't tell you when your 400 local followers pick up their phones. If the study says 11am Tuesday and your customers are teachers, roofers or nurses — people who are demonstrably not scrolling at 11am on a Tuesday — the number isn't just unhelpful. It's confidently wrong, which is worse.
Then there's the bigger issue: feeds haven't been chronological for years. Facebook and Instagram don't show your post to everyone who follows you the instant you publish. They show it to a small slice, watch what that slice does with it, and then decide whether to keep pushing. A post published at 3am that people actually engage with will outrun a post published in the golden hour that nobody bothers with. Timing gives your post a nudge out of the gate. Content decides whether it gets anywhere.
What the tool actually knows
Most scheduling software now offers some flavour of "optimal send time" — a little sparkle icon that picks the slot for you. Should you trust it?
It depends entirely on what it's looking at, and this is the one question worth asking before you hand over the decision.
If it's using your own account data — when your followers have historically engaged with your posts — that's genuinely useful. It's a real signal from real people who chose to follow you. Even then, it needs volume to mean anything. Twelve posts is a hunch dressed up as data. Two hundred is a pattern.
If it's applying a generic industry benchmark, it's the same infographic in a nicer wrapper. It has no idea your customers exist.
So: is this based on my audience, or everyone's? Most tools will tell you if you look. Plenty of them are quietly doing the second thing.
The honest answer for most small businesses
For most SMEs, timing is a third-order problem. It matters considerably less than:
1. Whether you posted at all. A perfectly ordinary post published on Thursday beats the brilliant one still sitting in your notes app, waiting for the right window. 2. Whether the first line earns the second. Someone's thumb moves fast. What's in the top two lines does far more work than what's on the clock. 3. Whether you turn up often enough to be recognised. People buy from businesses they've half-noticed a dozen times, not businesses they saw once at the optimal hour.
Only once those three are sorted does the gap between 9am and 1pm start showing up in your numbers. And when it does, it tends to be a modest lift — a bit more reach, not a transformation. Nobody has ever saved a struggling account by moving it forty minutes earlier.
A better use of the same five minutes
Rather than chasing an optimal hour, work out your customers' actual rhythm. You already know more about this than any dataset does.
A café knows the pre-work rush and the 3pm lull. A B2B supplier knows that nothing sent after 4pm on a Friday gets read until Monday. A wedding photographer knows enquiries land on Sunday evenings, once the big day has been picked over at dinner. A garage knows people book in during their lunch break, because that's when they can be on the phone without their boss hearing.
Write down three windows when your customers plausibly have a phone in one hand and a minute spare. Post into those windows. Check your own numbers after a couple of months and shift things about if the evidence says so. That's a personalised posting schedule, and it cost you five minutes and no subscription.
So — let the tool decide, or not?
Let it decide the *slot*. Picking the exact minute inside a window you've chosen is a fiddly, low-stakes call, and software will handle it about as well as you would while you get on with actual work.
Don't let it decide the *strategy*. If a tool insists on 11am Tuesday and you know full well your customers are on a building site until five, back yourself. You have information the algorithm will never have access to.
And whatever else you do, don't let "best time to post" become another reason not to post. The expensive timing mistake isn't publishing an hour late — it's the post that never went out at all because the window had closed and you decided you'd catch the next one. That's how a month disappears.
The whole point of scheduling in Aunty Social is that this argument stops happening in your head. You tell it roughly when your customers are about, it fills the weeks with content that sounds like you rather than like a marketing department, and the posts go out whether or not you remembered they were due. £29 a month, and the clock stops being something you have to think about.
Post at a decent hour. Post something worth reading. In that order.