Radoslaw has made the essential point. Times like hh.mm.60
are rejected as syntactically illicit by time-vetting routines, conversion routines, and the like. Glonass, RS's example, did hang for just this reason. There is a strong consensus among the members of the several international committees involved that leap seconds must not be literally intercalary in the way in which February 29 of leap years is intercalary. z/OS, for example, 'leaves out' such seconds by spinning on a lock for a second. I shall not discuss this matter further here. You are free, as always, to take your own Martian positions on this and other such issues. --jg -- John Gilmore, Ashland, MA 01721 - USA ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN