InfoPath Dev

Thanks for the explanation Lindsay. I didn't know about the colons, so that's really helpful info. For the date, I'm trying to output 8 digits every time. The current formula returns 2013318 and I'd like it to return 20130318. How do I go about getting the month and date to reliably put out 2 digits (01, 02, 03)?

My Infopath form submits to a SharePoint List. On submit, the instance of the form is saved with the date. By default, I think this is YYYY-MM-DDTHH_MM_SS, e.g. 2013-03-18T13_49_01. I need it to display as YYYYMMDD_HHMMSS, e.g. 20130318_134901 Solutions have been posted on these other threads, but I haven't been able to get it to ...