Best time to post in Australia
Every guide quotes one clock. You have three.
Post at 9am in Sydney during summer and Perth gets it at 6am. That is the part the overseas guides never handle, and it is the reason their advice feels off here. The engagement research below is theirs, cited and dated. The Australian timezone work is ours.
Updated 2026-08-14
The Australian problem
The spread is the problem, not the conversion.
Buffer normalises its Instagram and LinkedIn timings to local time and says so in plain words: 4pm means 4pm wherever you are. So there is nothing to convert from New York. The problem is closer to home. When you schedule one post for a national audience, you are picking one instant, and that instant reads differently in every capital.
Two hours wide in winter. Three in summer, because five of our eight states and territories move and three do not.
Post at 9am Sydney, winter
| City | Local clock when Sydney reads 9am |
|---|---|
| Sydney | ▸9am |
| Melbourne | ▸9am |
| Brisbane | ▸9am |
| Adelaide | ▸8:30am |
| Perth | ▸7am |
| Darwin | ▸8:30am |
| Hobart | ▸9am |
| Canberra | ▸9am |
Post at 9am Sydney, summer
| City | Local clock when Sydney reads 9am |
|---|---|
| Sydney | ▸9am |
| Melbourne | ▸9am |
| Brisbane | ▸8am |
| Adelaide | ▸8:30am |
| Perth | ▸6am |
| Darwin | ▸7:30am |
| Hobart | ▸9am |
| Canberra | ▸9am |
Perth reads 6am. On Buffer’s own Instagram numbers that is inside the weakest part of the week, so one in nine Australians gets your best post at its worst hour.
Who is on which clock
Three zones become five in October.
Population shares are Australian Bureau of Statistics estimated resident population at 31 December 2025, released 18 June 2026.
Standard time, early April to early October
| Zone | Offset | Where | Share of Australians |
|---|---|---|---|
| AEST | UTC+10 | NSW, VIC, QLD, TAS, ACT | 81.1% |
| ACST | UTC+9:30 | SA, NT | 7.8% |
| AWST | UTC+8 | WA | 11.1% |
Three clocks. AEST alone covers 81.1% of Australians, which is why an eastern anchor is the sane default.
Daylight saving, first Sunday in October to first Sunday in April
| Zone | Offset | Where | Share of Australians |
|---|---|---|---|
| AEDT | UTC+11 | NSW, VIC, TAS, ACT | 60.5% |
| ACDT | UTC+10:30 | SA | 6.9% |
| AEST | UTC+10 | QLD | 20.5% |
| ACST | UTC+9:30 | NT | 1.0% |
| AWST | UTC+8 | WA | 11.1% |
Five clocks, and the biggest one shrinks to 60.5%. Queensland splits away from New South Wales for half the year. Nothing in your scheduler warns you.
By platform
Five platforms, five different answers.
Each page gives the cited hours with their sample size, then the window that covers the whole country in each half of the year.
- Thursday 9am, Wednesday 12pm and Wednesday 6pm9.6 million Instagram posts from 200,000+ Buffer accounts, Buffer, 14 July 2026
- TikTok
- Sunday 9am, then Monday 1pm and Sunday 1pm7.1 million TikTok videos, carousels, photos and text posts, Buffer, 20 July 2026
- Wednesday 4pm, Friday 3pm and Friday 4pm4.8 million LinkedIn posts, Buffer, 22 July 2026
- Thursday 9am, then Thursday 8am and 10am14 million Facebook posts, Buffer, 26 February 2026
- YouTube
- Sunday 10am for long-form; Friday 4pm, 6pm and 7pm for Shorts1.8 million YouTube videos (long-form and Shorts), Buffer, 24 July 2026
Looking for a single day rather than a platform? The best day to post in Australia page puts all seven days side by side across every platform.
What we do not publish
No Australian engagement numbers of our own.
We looked at whether our own posting network could produce a genuine Australian benchmark. It cannot. It carries one platform, no audience-geography field at all, and its accounts are not Australian. A number built on that would look authoritative and mean nothing, which is precisely the problem with the pages that already rank for these searches.
So this page cites other people’s engagement research openly and does the Australian timezone work properly instead. The method page shows the arithmetic, the sample sizes, and what would have to change before we published a figure of our own.
Engagement hours on this page are third-party figures, quoted as published, with the sample size and analysis period next to each one. The Australian timezone analysis is ours, computed from published UTC offsets and Australian Bureau of Statistics population figures. We publish no engagement numbers of our own, and the method page explains exactly why.
Questions
The short answers.
What is the best time to post in Australia?+
It depends which platform and which half of the year, because Australia is two hours wide in winter and three in summer. In winter, 8pm to 10pm AEST puts every Australian inside Instagram's and TikTok's strongest band, 8am to 10am AEST does it for Facebook, and 5pm to 7pm AEST for LinkedIn. Once daylight saving starts, each of those windows loses an hour.
Do I need to convert overseas posting times to Australian time?+
No, and that is the mistake most people make. Buffer normalises its Instagram and LinkedIn figures to local time and says so explicitly, so 4pm means 4pm wherever you are. The real Australian problem sits closer to home: your own audience is on up to five different clocks at once.
Which Australian states have daylight saving?+
New South Wales, Victoria, South Australia, Tasmania and the ACT observe daylight saving, which is 67.4% of the population. Queensland, Western Australia and the Northern Territory do not, which is 32.6%. That split is why a schedule set in October quietly stops matching Brisbane and Perth.
Does clipmill publish its own Australian engagement data?+
No. Our own posting network is YouTube-only, has no audience-geography field, and its accounts are not Australian, so it cannot support an Australian engagement benchmark at any sample size. Publishing one anyway would make this page exactly like the ones that already rank. The method page sets out what we would need before we could.
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