def GetTimeMicros(time_tuple):
  """Get a time in microseconds.

  Arguments:
    time_tuple: A (year, month, day, hour, minute, second) tuple (the python
      time tuple format) in the UTC time zone.

  Returns:
    The number of microseconds since the epoch represented by the input tuple.
  """
  return int(SecondsToMicroseconds(GetSecondsSinceEpoch(time_tuple)))