code: public OffsetDateTime minusHours(long hours) {
          return (hours == Long.MIN_VALUE ? plusHours(Long.MAX_VALUE).plusHours(1) : plusHours(-hours));
      }
docs: Returns a copy of this {@code OffsetDateTime} with the specified number of hours subtracted.
  <p>
  This instance is immutable and unaffected by this method call.
  
  @param hours  the hours to subtract, may be negative
  @return an {@code OffsetDateTime} based on this date-time with the hours subtracted, not null
  @throws DateTimeException if the result exceeds the supported date range