code: public static OffsetDateTime toOffsetDateTime(Instant time, ZoneId zoneId) {
  
  		Assert.notNull(time, "Missing time!");
  		if (zoneId == null) {
  			zoneId = ZoneId.from(time);
  		}
  		return OffsetDateTime.ofInstant(time, zoneId);
  	}
docs: Converts timestamp into OffsetDatetime
  
  @param time   to be converted
  @param zoneId desired zone or null to take instant zone id
  @return OffsetDatetime representation of timestamp