Whether you can get a certified copy at eight in the evening depends almost entirely on which kind of certified copy you need — and most people asking the question have not yet worked that out. The two kinds have completely different availability, because they are performed by completely different groups of people.
A domestic certified copy. A person from an authorised class looks at your original, compares it to the photocopy, and endorses the copy with words to the effect that it is a true copy of the document shown to them. The class of people who may do this is broad and is set by whichever body is asking — a bank, a government agency, a university. Justices of the Peace, pharmacists, police officers, accountants, nurses and others commonly appear on these lists.
A notarial certified true copy. A notary public compares the copy to the original, certifies it under signature and seal, and records the act in a register. This is the version foreign authorities expect, and the only version that DFAT can attach an apostille to, because DFAT authenticates against its register of notaries' signatures and seals.
The first is widely available outside business hours. The second is not. Sorting out which you need is the first and most valuable step.
The authorised classes are large and many of them work shifts. That produces genuine evening and weekend coverage:
None of this is a guarantee. Lists differ between the Commonwealth and each state, and they are amended. Check the current list published by the body that will receive your document, and take the original with you — nobody can certify a copy against a copy.
Notaries are a small, private cohort. Depending on the state they are appointed either under statute or through the Court of Faculties, and in practice most are senior solicitors running a notarial practice alongside a legal one. There is no roster, no signing centre and no public duty to attend. An evening appointment happens because an individual practitioner agrees to it.
There are also mechanical constraints that do not apply to a JP:
Practitioners who do offer after-hours or mobile attendance generally charge a premium, sometimes a substantial one, and often a callout fee on top. Ask for the figure in writing before booking; it varies widely and is not standardised.
If your deadline is tonight, the fastest correct path is usually:
A copy certified by the wrong class of person is not a lesser certification; for the purpose you need it, it is no certification at all. This is the single most common wasted trip in the whole area.
If the copy is leaving the country, work backwards from the destination. Ask the receiving authority:
The third question catches a frequent and expensive error. A JP's certification is generally meaningful only inside Australia, because there is no international mechanism for authenticating it. Rushing to get one at 9pm for a document bound for a foreign ministry usually produces a document that must be redone.
Can a certified copy be made from a scan or a photograph? Generally no. The certifier must see the original. Some bodies accept certification of a printed digital document where the original is itself electronic, but that is the receiving body's decision, not the certifier's.
Can I get a copy certified over video after hours? Remote witnessing arrangements exist in several Australian states and have changed repeatedly since 2020. Whether a true-copy certification specifically can be done remotely, and whether it will then be accepted, must be checked against the current rules in the relevant state and with the receiving authority. Do not assume the answer from a page like this one.
How many copies should I certify at once? More than you think you need. Each certification is a separate act and often a separate fee, but a second after-hours appointment costs more than a second copy.
Is a solicitor's certification the same as a notary's? No. They are different classes of certification with different international recognition, even when the same person holds both appointments.