sS formatDateRangeWithMinutes(LongRange range) {
  ret formatDateRangeWithMinutes(range, localTimeZone());
}

sS formatDateRangeWithMinutes(LongRange range, TimeZone tz) {
  ret range == null ? null
    : formatDateWithMinutes(range.start) + " to " + formatDateWithMinutes(range.end);
}