The following is a list of snippet variables:
$${DATE}
$${MONTH}
$${TIME}
$${DATETIME}
$${DAYOFWEEK}
$${CURRENTFILE} - Current file name (just the file)
$${CURRENTFOLDER} - Current folder (The path to the containing folder)
$${CURRENTPATH} - Current path (full file name)
$${CURRENTPRJPATH} - Just the folder
$${USERNAME} - Current user
$${MONTHNUMBER} - Month as a number
$${DAYOFMONTH} - Day of month as a number
$${DAYOFWEEKNUMBER} - Day of week (the week starts on Sunday)
$${DATETIME24} - DateTime24 - a 24 hour clock version of datetime.
$${YEAR} - Current year.
$${YEAR2DIGIT} - Current two digit year.