Does the standard interest rate swap use end of month convention or not?

Let's look at 4 examples:_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/effective date : 31/01/2006expiry date : 31/01/2016Fixing date : quaterlyStandard is : End of Month Roll_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/effective date : 30/04/2006expiry date : 30/04/2016Fixing date : quaterlyStandard is : End of Month Roll_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/effective date : 30/01/2006expiry date : 30/01/2016Fixing date : quaterlyStandard is : Roll on day 30th_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/effective date : 30/01/2006expiry date : 31/01/2016 (imagine 30 is holyday)Fixing date : quaterlyStandard is : Roll on day 30th_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/Those dates are just examples (I haven't check holydays ...)To resume: if effective date is end of moth then roll is also end of month.Tell me if this answer your question.