code: public ZonedDateTime minusMinutes(long minutes) {
          return (minutes == Long.MIN_VALUE ? plusMinutes(Long.MAX_VALUE).plusMinutes(1) : plusMinutes(-minutes));
      }
docs: Returns a copy of this {@code ZonedDateTime} with the specified number of minutes subtracted.
  <p>
  This operates on the instant time-line, such that subtracting one minute will
  always be a duration of one minute earlier.
  This may cause the local date-time to change by an amount other than one minute.
  Note that this is a different approach to that used by days, months and years.
  <p>
  This instance is immutable and unaffected by this method call.
  
  @param minutes  the minutes to subtract, may be negative
  @return a {@code ZonedDateTime} based on this date-time with the minutes subtracted, not null
  @throws DateTimeException if the result exceeds the supported date range