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

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