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- # Allowance for leap seconds added to each time zone file.
-
- # This file is in the public domain.
-
- # This file is generated automatically from the data in the public-domain
- # leap-seconds.list file, which is copied from:
- # ftp://ftp.nist.gov/pub/time/leap-seconds.list
- # For more about leap-seconds.list, please see
- # The NTP Timescale and Leap Seconds
- # https://www.eecis.udel.edu/~mills/leap.html
-
- # The International Earth Rotation and Reference Systems Service
- # periodically uses leap seconds to keep UTC to within 0.9 s of UT1
- # (which measures the true angular orientation of the earth in space); see
- # Levine J. Coordinated Universal Time and the leap second.
- # URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995
- # http://ieeexplore.ieee.org/document/7909995/
- # There were no leap seconds before 1972, because the official mechanism
- # accounting for the discrepancy between atomic time and the earth's rotation
- # did not exist until the early 1970s.
-
- # The correction (+ or -) is made at the given time, so lines
- # will typically look like:
- # Leap YEAR MON DAY 23:59:60 + R/S
- # or
- # Leap YEAR MON DAY 23:59:59 - R/S
-
- # If the leapsecond is Rolling (R) the given time is local time.
- # If the leapsecond is Stationary (S) the given time is UTC.
-
- # Leap YEAR MONTH DAY HH:MM:SS CORR R/S
- Leap 1972 Jun 30 23:59:60 + S
- Leap 1972 Dec 31 23:59:60 + S
- Leap 1973 Dec 31 23:59:60 + S
- Leap 1974 Dec 31 23:59:60 + S
- Leap 1975 Dec 31 23:59:60 + S
- Leap 1976 Dec 31 23:59:60 + S
- Leap 1977 Dec 31 23:59:60 + S
- Leap 1978 Dec 31 23:59:60 + S
- Leap 1979 Dec 31 23:59:60 + S
- Leap 1981 Jun 30 23:59:60 + S
- Leap 1982 Jun 30 23:59:60 + S
- Leap 1983 Jun 30 23:59:60 + S
- Leap 1985 Jun 30 23:59:60 + S
- Leap 1987 Dec 31 23:59:60 + S
- Leap 1989 Dec 31 23:59:60 + S
- Leap 1990 Dec 31 23:59:60 + S
- Leap 1992 Jun 30 23:59:60 + S
- Leap 1993 Jun 30 23:59:60 + S
- Leap 1994 Jun 30 23:59:60 + S
- Leap 1995 Dec 31 23:59:60 + S
- Leap 1997 Jun 30 23:59:60 + S
- Leap 1998 Dec 31 23:59:60 + S
- Leap 2005 Dec 31 23:59:60 + S
- Leap 2008 Dec 31 23:59:60 + S
- Leap 2012 Jun 30 23:59:60 + S
- Leap 2015 Jun 30 23:59:60 + S
- Leap 2016 Dec 31 23:59:60 + S
-
- # Updated through IERS Bulletin C55
- # File expires on: 28 December 2018
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