1 #
2 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 #
4 # This code is free software; you can redistribute it and/or modify it
5 # under the terms of the GNU General Public License version 2 only, as
6 # published by the Free Software Foundation. Oracle designates this
7 # particular file as subject to the "Classpath" exception as provided
8 # by Oracle in the LICENSE file that accompanied this code.
9 #
10 # This code is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 # version 2 for more details (a copy is included in the LICENSE file that
14 # accompanied this code).
15 #
16 # You should have received a copy of the GNU General Public License version
17 # 2 along with this work; if not, write to the Free Software Foundation,
18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 #
20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 # or visit www.oracle.com if you need additional information or have any
22 # questions.
23 #
24 # Allowance for leap seconds added to each time zone file.
25
26 # This file is in the public domain.
27
28 # This file is generated automatically from the data in the public-domain
29 # leap-seconds.list file, which can be copied from
30 # <ftp://ftp.nist.gov/pub/time/leap-seconds.list>
31 # or <ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list>
32 # or <ftp://tycho.usno.navy.mil/pub/ntp/leap-seconds.list>.
33 # For more about leap-seconds.list, please see
34 # The NTP Timescale and Leap Seconds
35 # <https://www.eecis.udel.edu/~mills/leap.html>.
36
37 # The International Earth Rotation and Reference Systems Service
38 # periodically uses leap seconds to keep UTC to within 0.9 s of UT1
39 # (which measures the true angular orientation of the earth in space)
40 # and publishes leap second data in a copyrighted file
41 # <https://hpiers.obspm.fr/iers/bul/bulc/Leap_Second.dat>.
42 # See: Levine J. Coordinated Universal Time and the leap second.
43 # URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995
44 # <https://ieeexplore.ieee.org/document/7909995>.
45 # There were no leap seconds before 1972, because the official mechanism
46 # accounting for the discrepancy between atomic time and the earth's rotation
47 # did not exist.
48
49 # The correction (+ or -) is made at the given time, so lines
50 # will typically look like:
51 # Leap YEAR MON DAY 23:59:60 + R/S
52 # or
53 # Leap YEAR MON DAY 23:59:59 - R/S
54
55 # If the leap second is Rolling (R) the given time is local time (unused here).
56 Leap 1972 Jun 30 23:59:60 + S
57 Leap 1972 Dec 31 23:59:60 + S
58 Leap 1973 Dec 31 23:59:60 + S
59 Leap 1974 Dec 31 23:59:60 + S
60 Leap 1975 Dec 31 23:59:60 + S
61 Leap 1976 Dec 31 23:59:60 + S
62 Leap 1977 Dec 31 23:59:60 + S
63 Leap 1978 Dec 31 23:59:60 + S
64 Leap 1979 Dec 31 23:59:60 + S
65 Leap 1981 Jun 30 23:59:60 + S
66 Leap 1982 Jun 30 23:59:60 + S
67 Leap 1983 Jun 30 23:59:60 + S
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1 # Allowance for leap seconds added to each time zone file.
2
3 # This file is in the public domain.
4
5 # This file is generated automatically from the data in the public-domain
6 # leap-seconds.list file, which can be copied from
7 # <ftp://ftp.nist.gov/pub/time/leap-seconds.list>
8 # or <ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list>
9 # or <ftp://tycho.usno.navy.mil/pub/ntp/leap-seconds.list>.
10 # For more about leap-seconds.list, please see
11 # The NTP Timescale and Leap Seconds
12 # <https://www.eecis.udel.edu/~mills/leap.html>.
13
14 # The International Earth Rotation and Reference Systems Service
15 # periodically uses leap seconds to keep UTC to within 0.9 s of UT1
16 # (which measures the true angular orientation of the earth in space)
17 # and publishes leap second data in a copyrighted file
18 # <https://hpiers.obspm.fr/iers/bul/bulc/Leap_Second.dat>.
19 # See: Levine J. Coordinated Universal Time and the leap second.
20 # URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995
21 # <https://ieeexplore.ieee.org/document/7909995>.
22
23 # There were no leap seconds before 1972, because the official mechanism
24 # accounting for the discrepancy between atomic time and the earth's rotation
25 # did not exist. The first ("1 Jan 1972") data line in leap-seconds.list
26 # does not denote a leap second; it denotes the start of the current definition
27 # of UTC.
28
29 # The correction (+ or -) is made at the given time, so lines
30 # will typically look like:
31 # Leap YEAR MON DAY 23:59:60 + R/S
32 # or
33 # Leap YEAR MON DAY 23:59:59 - R/S
34
35 # If the leap second is Rolling (R) the given time is local time (unused here).
36 Leap 1972 Jun 30 23:59:60 + S
37 Leap 1972 Dec 31 23:59:60 + S
38 Leap 1973 Dec 31 23:59:60 + S
39 Leap 1974 Dec 31 23:59:60 + S
40 Leap 1975 Dec 31 23:59:60 + S
41 Leap 1976 Dec 31 23:59:60 + S
42 Leap 1977 Dec 31 23:59:60 + S
43 Leap 1978 Dec 31 23:59:60 + S
44 Leap 1979 Dec 31 23:59:60 + S
45 Leap 1981 Jun 30 23:59:60 + S
46 Leap 1982 Jun 30 23:59:60 + S
47 Leap 1983 Jun 30 23:59:60 + S
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