how to pass date parameter in URL in system date format

Hi All,

I am working on a requirement where I need to pass the date parameter in URL. Where date format needs to be system default date format. How can we format date without providing specific date format.

Also, I got some post which had below example. Can you let me know what this format does.

'/analysis/report?queryGroupName=Custom-ProjectInfo&TimePeriodBeginning=', <%+%> FCI_CHARFMT(TIME_PERIOD_START_DATE),' <%+%>

'&TimePeriodBeginning_format=17&link_crumb=true'

Waiting for response.

Thanks,

Saloni