'Returns total time as a string with number of full hours and minutes
:rtype str'

def get_total_time_string(self):

    time = self.get_total_time_tuple()
    if (not time):
        return _('0    minutes')
    hours = time[0]
    minutes = time[1]
    string = ''
    if (hours or minutes):
        if hours:
            string += (_('%2i    hours    ') % (hours,))
        if minutes:
            string += (_('%2i    minutes') % (minutes,))
    else:
        string = _('Less    than    1    minute')
    return string
