Secundum intercalarium

Annus 30 Iunii 23:59:60 31 Decembris 23:59:60 1972 +1 sec +1 sec 1973 +1 sec 1974 +1 sec 1975 +1 sec 1976 +1 sec 1977 +1 sec 1978 +1 sec 1979 +1 sec 1980 1981 +1 sec 1982 +1 sec 1983 +1 sec 1984 1985 +1 sec 1986 1987 +1 sec 1988 1989 +1 sec 1990 +1 sec 1991 1992 +1 sec 1993 +1 sec 1994 +1 sec 1995 +1 sec 1996 1997 +1 sec 1998 +1 sec 1999 2000 2001 2002 2003 2004 2005 +1 sec 2006 2007 2008 +1 sec 2009 2010 2011 2012 +1 sec 2013 2014 2015 +1 sec 2016 +1 sec 2017 2018 2019 2020 2021

Secundum intercalarium est secundum intercalationis quod additur ut universale tempus coordinatum (UTC) cum tempore solari (GMT) coordinetur.

Horologium quod apud time.gov situm est secundum intercalarium, die 30 Iunii anno 2012 additum monstrat.

Secundum additur quando observationes astronomicae hoc exigunt. Additur in fine diei 30 Iunii vel 31 Decembris sic, ut UTC non magis quam ±0,9 secundi a GMT digrediatur. Officium internationale telluris rotantis^(en) secundum addendum declarat.

Bibliographia

• Ahuja, Anjana. 2005. "Savouring the last leap second in history." New Straits Times, 30 Octobris 2005, F10.
• Grossman, Wendy M. 2005. "Wait a Second." Scientific American, November, 12–13.
• Finkleman, David, et al. 2011. "The Future of Time: UTC and the Leap Second." American Scientist 99 (4): 312–19. arXiv:1106.3141. doi:10.1511/2011.91.1.
• Kamp, Poul-Henning. 2011. "The One-Second War." Communications of the ACM 54 (5): 44–48. doi:10.1145/1941487.1941505.
• McCarthy, Dennis D., et P. Kenneth Seidelmann. 2009. Time: From Earth Rotation to Atomic Physics. Weinheim: Wiley-VCH.

Nexus externi

• De secundo intercalario (Anglice)