${DateTime} variable was broken in NPM 10.2 and 10.3 and date is reported as 1/1/2013 06:00PM. In pre-10.2 versions, ${DateTime} was reported in long form; '${DayOfWeek}, ${MonthName} ${DD}, ${YYYY} ${Time}'. I was told it would be fixed in 10.4 (Case # 360826 - ${DateTime} variable has changed) but we are still running 10.3.1 so I can't confirm it is fixed in 10.4. Any feedback on if it is fixed would be appreciated. Thanks.
Hope this helps.