   else
     ['none', command]
 
-_parseTime = (command, activeStart, activeEnd) ->
+_parseTime = (command, activeStart, activeEnd, tz) ->
   # parse time component
   command = command.trimLeft() || ''
   if command.indexOf('at') is 0

    original = command.slice 0

    [start, end] = user.activeHours()
    [times, command] = _parseTime command, start, end
    [dates, command] = _parseDate command

    tz = timezone || user.timetable.timezone.name
    datetimes = []
    if dates.length is 0 and times.length is 0
      datetimes.push(moment.tz(tz))

    command = command.replace ///#{match[0]} ?///i, ''
  else if match = command.match REGEX.time
    timeMatch = match[0]
    now = moment.tz(tz)
    if hourStr = timeMatch.match /\b((0?[1-9]|1[0-2])|(([0-1][0-9])|(2[0-3]))):/i
      hour = parseInt(hourStr[0].replace(':', ''))
      if hour <= 12
