The state apostille/authenticate process can take 1 to 4 weeks including shipping. It is an estimation as the processing time largely depends on the speed of state office.
Federal apostille and Authentication certificates takes 8-11 weeks according to the U.S. department of states.
When it comes to authenticating documents for countries that are not part of the 1961 Hague Convention, a two-step process is often necessary. This involves obtaining an authentication certificate from the state where the document was issued or notarized, followed by authentication by the U.S. Department of State.