For now, you could use something along the lines of ...
Code:
alias gmtc {
  return $calc($ctime($1) + $calc($gmt - $ctime))
}

And have $gmtc(whatever date/time here). I'm not sure if the above will work but you get the idea of what I intended. wink (I hope)

"Any sufficiently advanced technology is indistinguishable from magic." - Arthur C. Clarke