Here's what's happening with leap seconds now, as divined using zdump: Script started on Tue 13 Jun 2006 11:56:20 AM EDT elsie$ cd ~/src/tz elsie$ make install TOPDIR=$PWD/tmp REDO=right_only >&- elsie$ ./zdump -v America/New_York | grep 1972 America/New_York Sun Apr 30 06:59:59 1972 UTC = Sun Apr 30 01:59:59 1972 EST isdst=0 America/New_York Sun Apr 30 07:00:00 1972 UTC = Sun Apr 30 03:00:00 1972 EDT isdst=1 America/New_York Fri Jun 30 23:59:60 1972 UTC = Fri Jun 30 19:59:60 1972 EDT isdst=1 America/New_York Sat Jul 1 00:00:00 1972 UTC = Fri Jun 30 20:00:00 1972 EDT isdst=1 America/New_York Sun Oct 29 05:59:59 1972 UTC = Sun Oct 29 01:59:59 1972 EDT isdst=1 America/New_York Sun Oct 29 06:00:00 1972 UTC = Sun Oct 29 01:00:00 1972 EST isdst=0 America/New_York Sun Dec 31 23:59:60 1972 UTC = Sun Dec 31 18:59:60 1972 EST isdst=0 America/New_York Mon Jan 1 00:00:00 1973 UTC = Sun Dec 31 19:00:00 1972 EST isdst=0 elsie$ exit script done on Tue 13 Jun 2006 11:56:54 AM EDT What should be different? --ado