[i4w_set webinarstarttime=”[i4w_date date='{:mywebdate:}’ operation=’-12 days’ format=’Y-m-d H:i:s’]”]
<{@i4w_set videostart="0"@}>
<{!i4w_compare value1="[i4w_datediff todate='{:webinarstarttime:}' format='U']" cmp='LT' value2="0"!}>
<{@i4w_set videostart="[i4w_exec]echo [i4w_date format='U'] - [i4w_date date='{:webinarstarttime:}' format='U'];[/i4w_exec]"@}>
<{!/i4w_compare!}>