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Offsets and step adjustments of UTC

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   Date            Offsets    Steps        Date     Steps       Date     Steps
(at 0h UTC)                             (at 0h UTC)          (at 0h UTC)

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1961  Jan.   1  - 150x10-10             
      Aug.   1       "      + 0.050s    1972  Jul. 1  - 1s   1996  Jan. 1  - 1s
                ---------               1973  Jan. 1  - 1s   1997  Jul. 1  - 1s
1962  Jan.   1  - 130x10-10             1974  Jan. 1  - 1s   1999  Jan. 1  - 1s
1963  Nov.   1       "      - 0.100s    1975  Jan. 1  - 1s
                ---------               1976  Jan. 1  - 1s
1964  Jan.   1  - 150x10-10             1977  Jan. 1  - 1s
      Apr.   1       "      - 0.100s    1978  Jan. 1  - 1s
      Sept.  1       "      - 0.100s    1979  Jan. 1  - 1s
1965  Jan.   1       "      - 0.100s    1980  Jan. 1  - 1s
      March  1       "      - 0.100s    1981  Jul. 1  - 1s
      Jul.   1       "      - 0.100s    1982  Jul. 1  - 1s
      Sept.  1       "      - 0.100s    1983  Jul. 1  - 1s
                ---------               1985  Jul. 1  - 1s
1966  Jan.   1  - 300x10-10             1988  Jan. 1  - 1s
1968  Feb.   1       "      + 0.100s    1990  Jan. 1  - 1s
                ---------               1991  Jan. 1  - 1s
1972  Jan.   1     0     - 0.107 7580s  1992  Jul. 1  - 1s
                                        1993  Jul. 1  - 1s
                                        1994  Jul. 1  - 1s

Created: 1 Jan 2001. Table provided by the former Central Bureau.