Or more specifically, is there a peak time of day when a greater proportion of newly posted questions tend to get answered? When are the experts online and actively answering?

And conversely, are there any "dead times" when newly posted questions tend to drift off the radar screen and remain unanswered? When are the experts asleep or otherwise busy?

Please specify time zones in your answer - plus any other tips to improve the response rate, thanks.


2 Answers 2


Looking at the locations of the users with high reputations (which tend to include a lot of people who answer), and filling in those whose locations I know but who don't give one here, it looks like a little bit more than half the number come from the USA, Canada, and other countries that have similar time zones. The rest cover Europe (including UK), Russia, India, Australia, New Zealand, and many other places around the world.

There's almost always some people active.

Purely anecdotally, there are relatively more answerers active when the North Americans are either at work or after work -- but at the same time, there are more people asking as well, so it's also easier for a question to disappear off the front page.

Less anecdotally, there's a number of relevant data queries at data.stackexchange.com

This one:


has pretty strict criteria$^\dagger$ but you might be able to modify it to suit your needs; it looks for when accepted answers that score more than 50 from users with more than 10000 reputation were posted (a very high bar, few users answers regularly satisfy all of those criteria, so you're mostly looking at posts from a small subset of good answerers). In any case, that suggests that UTC 12-22 may be somewhat better than UTC 1-8 with other times in between.

$^\dagger$ Only 4.7% (!) of answers were counted in those figures. Probably the biggest factor in what gets included is the 50 score limit on the post (that limit is more likely to be hit if a question is asked an answered when North America is active -- it can be somewhat harder to get upvotes on good answers at other times), with the 10K rep not far behind. I think both are too strict, cutting out a host of really good answerers.

Note that the criteria above would have also suggested that you wouldn't have the best chance to get a good answer right when I am posting this. There may be a lesson in that, also.

Looking at some other queries, the three high rep users with the most accepted answers* will answer questions asked at any time -- in each case the times questions are posted which they answered are almost uniformly spread by time of day -- with a mild peak when people post more -- irrespective of when those answerers are active.

* (the only ones I checked but I expect that pattern will hold up for many more)

(Why? because while they don't answer around the clock, when they are answering, the most-accepted answerers scroll back through the questions until they hit questions they've already seen; if you want to get the attention of our most prolific producers of accepted answers, it really doesn't much matter when you post)

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    $\begingroup$ Well that's the best, clearest and most complete answer I've ever received on SE, thanks. Pity it's only on Meta... $\endgroup$
    – Kelvin
    Commented Mar 30, 2016 at 1:01
  • $\begingroup$ Looking at the query you linked to, it seems that selection criteria of 50+ upvotes and 10k+ rep are commented out; it's only looking for accepted answers posted on the same day as the question (unless you were looking at some modified version of this query). $\endgroup$
    – amoeba
    Commented Mar 30, 2016 at 9:12
  • $\begingroup$ @amoeba Ah, yes, of course that's commented out. Well now I have no good explanation for how less than 5% of the posts show up in it. Maybe there's something wrong with that query. $\endgroup$
    – Glen_b
    Commented Mar 30, 2016 at 11:26
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    $\begingroup$ I posted some questions on Easter holidays and they seemed poorly received, so probably it might also be smart to avoid (if you want to maximize the yield of your questions), evident periods of holiday or leave. $\endgroup$ Commented Mar 30, 2016 at 14:24
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    $\begingroup$ @Giuseppe Biondi-Zoccai - More to the point, it might be better to take a holiday yourself. Occasionally. ;-) $\endgroup$
    – Kelvin
    Commented Apr 1, 2016 at 19:31

My answer will not be about a time of day, but more about a couple of days period...

During weekends, the questions tend to receive an answer much later than if asked during the week days, at least in my perception.


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