Issue 17573: time-of-day time point definitions are inaccurate (date-time-ftf) Source: NIST (Mr. Edward J. Barkmeyer, edbark(at)nist.gov) Nature: Uncategorized Issue Severity: Summary: The UML diagram Figure 13.1 shows leap second as a subclass of second-of-day. The text in 13.2 defines it to be an instance of second of day, and the definition of day-of-seconds confirms this. The UML diagram is incorrect. 'leap second' may be an intercalary time point that arises from a change in time offset, rather than a second-of-day. Resolution: Revised Text: Actions taken: August 30, 2012: received issue Discussion: End of Annotations:===== te: Thu, 30 Aug 2012 11:08:33 -0400 From: Ed Barkmeyer Reply-To: Organization: NIST User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) To: "issues@omg.org" Subject: DTV issue: Leap second is an instance of second-of-day X-NISTMEL-MailScanner-Information: Please contact postmaster@mel.nist.gov for more information X-NISTMEL-MailScanner-ID: q7UF8cmM004512 X-NISTMEL-MailScanner: Found to be clean X-NISTMEL-MailScanner-SpamCheck: X-NISTMEL-MailScanner-From: edbark@nist.gov X-NISTMEL-MailScanner-Watermark: 1346944119.67354@72NhNeCqHa+33uaZB3He1g X-Spam-Status: No Specification: Date Time Vocabulary Version: beta-2 Title: time-of-day time point definitions are inaccurate Source: Ed Barkmeyer, NIST, edbark@nist.gov Summary: The UML diagram Figure 13.1 shows leap second as a subclass of second-of-day. The text in 13.2 defines it to be an instance of second of day, and the definition of day-of-seconds confirms this. The UML diagram is incorrect. 'leap second' may be an intercalary time point that arises from a change in time offset, rather than a second-of-day. -- Edward J. Barkmeyer Email: edbark@nist.gov National Institute of Standards & Technology Manufacturing Systems Integration Division 100 Bureau Drive, Stop 8263 Tel: +1 301-975-3528 Gaithersburg, MD 20899-8263 Cel: +1 240-672-5800