It's less than 20 days by law in my country and almost everything is done without depositor's input -- money are transferred to another bank and you simply come there with your ID to take your money in cash or open an account in another bank. I really wouldn't mind to wait a week or two as opposed to billions paid of tax money.
http://www.baltictimes.com/news/articles/30019/
So this isn't a case where a government let a bank fail, this is the traditional bailout mechanism for failed banks - the government buys them out.
This is what Latvia did with Parex, what the Netherlands did with SNS and Fortis, what portugal did with BPN and the list goes on and on and on.
For the most part no one let a bank fail the same way that the US did with LB, and no one would really want to try that with a commercial high street bank.