Technically the same, just with different start dates. But there's a catch: suppose your fiscal year starts Oct 1st, and you request help on August 15th. The answer is often "we're at the end of the fiscal year, but we have approval to start work on that in October".

So if it takes half a fiscal year, depending on when you first say you need it, it can be much longer.

It depends on what you care about. Do you have a bug that is affecting revenue? Do you pay an annual support/maintenance contract?