Jobseeker and Supplementary Welfare Allowance payments are available in the Post Office from the specified payment date until close of business on Tuesday of the following week.
Depending on the specific payment day, this allows anything from 4 to 9 days to collect payment.
For example if payment day is Friday, you can collect payment on Friday, Saturday, Monday or Tuesday.
If payment day is Monday, you can collect payment on Monday to Saturday, or Monday or Tuesday of the following week.
Payments are returned by An Post to SW on Tuesday nights.
As far as I'm aware, there are different arrangements for pensioners and one parent family payments.