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: ,
30
23:59:60		 31
23:59:60
1972 +1 +1
1973   +1
1974   +1
1975   +1
1976   +1
1977   +1
1978   +1
1981 +1  
1982 +1  
1983 +1  
1985 +1  
1987   +1
1989   +1
1990   +1
1992 +1  
1993 +1  
1994 +1  
1995   +1
1997 +1  
1998   +1
2005   +1
2008   +1
2012[1] +1  

́ ́ (. leap second)  , UT1.

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30 31 , UTC UT1 , ±0,9 . , 23:59:59 23:59:60.

, ( 23:59:58 00:00:00). .

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[2], , 31 /.

31 2008 .

UT1 UTC.

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, -, , , . , . NTP . GPS , GPS- NMEA, [3]. , , , , .

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, , 2009 , 600 [4]. , , 26 2006 , , , , [5].

IERS :

UTC 2012 ITU-R .

« », UTC .

, 2012 UTC, 5 - 2017 .

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  1. http://hpiers.obspm.fr/iers/bul/bulc/bulletinc.43 IERS Bulletin C 43
  2. Morrison, L. and Stephenson, F. R., «Historical Values of the Earths Clock Error ΔT and the Calculation of Eclipses», J. Hist. Astron., Vol. 35 Part 3, August 2004, No. 120, pp 327336 (2004)
  3. GPS-
  4. . Ru: 2008 61
  5. Redefinition of Coordinated Universal Time | News | IAU

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