????? ?????

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30 ????? 1972 عدل القيمة على Wikidata
????? ???? ?? ??????? ?? ?????
2035 [1] عدل القيمة على Wikidata

????? - ????? ????? - ????? ???? ?????? حول القالب

??????? ??????? ( ??????????? : Leap second )? ?? ????? ???? ????? ????? ????? ????? ?? ????? ??????? ?????? ??????? ??????? ( ??????????? : UT )? ???? ????? ??? ???? ????? ????? ? ?????? ?????? ?? ??????? ????? ???? ????? ?????? ??????? ??????? ?????? ( ??????????? : UTC )? ???????? ??????? ?????? ?? ???????? ????????. ????? ??? ??????? ??? ?? ??? ????? ?? ??????. [2]

???? ????? ????? ???? ?? 31 ?????? 2016 ?? 23:59:60. [3] ???? ?????? ≪??????? ???????≫ ??? 1972 ? ??? ??? ??? ??????? ???? ????? ??????? ??????? 27 ????? ??? ?? ??? ??? ???? ????? ?? 31 ?????? 2016 ? ????? ???? ????? ????? ??? ?????? ???? ???? ??? ?????? ??????? ?????? ????? ?????? ???????? ??????? ????? ?????? ??? ??????? ≪???????≫. [4]

????? [ ??? ]

??????? ??????? ??????? ??? ????
????? 30 ????? 31 ??????
1972 +1 +1
1973 0 +1
1974 0 +1
1975 0 +1
1976 0 +1
1977 0 +1
1978 0 +1
1979 0 +1
1980 0 0
1981 +1 0
1982 +1 0
1983 +1 0
1984 0 0
1985 +1 0
1986 0 0
1987 0 +1
1988 0 0
1989 0 +1
1990 0 +1
1991 0 0
1992 +1 0
1993 +1 0
1994 +1 0
1995 0 +1
1996 0 0
1997 +1 0
1998 0 +1
1999 0 0
2000 0 0
2001 0 0
2002 0 0
2003 0 0
2004 0 0
2005 0 +1
2006 0 0
2007 0 0
2008 0 +1
2009 0 0
2010 0 0
2011 0 0
2012 +1  
2013 0 0
2014 0 0
2015 +1 0
2016 0 +1
????? ????? 30 ?????? 31
???????? 11 16
27
Current TAI ? UTC
36 (??? ?????? 2016)

?? ?????? ??????? ??????? ????? 1 ? 86400 ?? ????? ????? ?????? ??? ????? ????? ????? ??? ?????? ???? ?????. ?????? ????? ????? 20 ? ??? ?????? ?? ????? ????? ?? ???? ??????? ????? ????? ????? ?????? ??? 1956 ???? ????? ??????? ??? ?????? ???????? ??????? ????? ??? ?????. ??? 1967 ???? ????? ???????? ??? ????? ???? ??? ????? ?????? ??? ??????? ??? ???????? ? ????? ??? ???? ?????? ????? ????. [5] ??? ?? ????? ?????? ???? 1.7 ???? ????? ???? ?? ??? ?????? ???? ???????? ????? (2.3 ? ?/?? ????? ?? 0.6 ? ?/? ???? ???????? ??????? ). [6]

??? ????? 1972 ????? 26 ?????? ??? ???? ??? ???? ????? ?? 30 ????? 2015 ? ????? ??? ????? ????? ????? ??? ????? ???? 2012 .

??? ??????? [ ??? ]

???? ??? ???? ???? ????? ????? ? ??? ??????? ?? ??? 1950 ??????? ?????? ?????? ???? ?? ??? ?????? ?????? ?????? ???? ???? ??? ?????? ????? ????? ??????? ???? ?? ??? ????? ??? ??????? ?? ??????? ??? ?? ???? ????? ?????? ??????? ???? ?? ???? ???? ??? ?????? ?????? ???????? ?????? ???? ???? ????? ?????? ?????.

??? ??? ?????? ??? ?????? ??? ????? ?????? ?????? ???????? ??????? ??? ??????? ??????? ??????? ??????? ?????? (UTC) ???????? ?? ????? ?????? ??? ??? ????? ??????? ??????? ??? ??? ???? ??????? ??? ????? ≪????? ?????≫ ??? ??????? ???????? ???? ?? ??? ?????? ??? ????? ????? ????? ???????? ?????? ???????? ?? ?????? ?????.

???????? ????? [ ??? ]

????? ≪??????? ???????≫ ?????? ????? ?????? ???????? ??????? ? ?????? ?????????? ???? ????? ???????? ????????? ??? ??????? ????? ?? ??? ????? ???? ???????? ????? ????? ??? ?????? ????? ??? ?????? ??????? ???????? ???? ????? ???? ???????? ???? ????? ≪??????? ???????≫ . ???? ?????? ?????? ≪??????? ???????≫ ???? ???? ??? ?????? ???????? ?????? ?????? ??????? ???????? ?? ???? ????? ????? ??? ?????? ????? ????? ?? ????? ?? ??????? ??????. [7]

????? [ ??? ]

  1. ^ ???? ????: https://www.nature.com/articles/d41586-022-03783-5 . ??????? ????? ?????????? (DOI): 10.1038/d41586-022-03783-5 .
  2. ^ Gambis? Danie (5 ????? 2015). "Bulletin C 49" . Paris: ?????? ??????? ?????? ????? ?????? ???????? . ????? ?? ????? ?? 2017-11-15 . ???? ???? ?????? 2015-01-05 .
  3. ^ Bizouard? Christian. "Bulletin C 52" . International Earth Rotation and Reference Systems Service . IERS. ????? ?? ????? ?? 2019-05-31 . ???? ???? ?????? 2016-07-06 .
  4. ^ "?????? - ??? ????? ?? ??? ????? ????? "61 ?????" ???? ?????? ???? ????? ?????" . ????? 24 . ????? ?? ????? ?? 2018-08-11 . ???? ???? ?????? 2015-06-30 .
  5. ^ eapsec.html "Leap Seconds" . Time Service Department, United States Naval Observatory . ???? ???? ?????? 2008-12-27 . {{ ??????? ??? }} : ???? ?? ???? |????= ( ?????? ) [ ???? ?????? ]
  6. ^ F.R. Stephenson, L.V. Morrison. " Long-term fluctuations in the Earth's rotation: 700 BC to AD 1990 ". Philosophical Transactions of the Royal Society of London , Series A 351 (1995) 165?202. ???? ?????? 07 ????? 2017 ??? ???? ??? ??? ???? .
  7. ^ "????? ≪??????? ???????≫ ??????? ??????? ????????" . ????? ?? ????? ?? 2018-09-25 . ???? ???? ?????? 2015-06-30 .
?????? ?? ≪ https://ar.wikipedia.org/w/index.php?title=?????_?????&oldid=62358707 ≫