diff options
| author | Tim Parenti <tim@timtimeonline.com> | 2015-01-06 15:22:41 -0500 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2015-01-06 13:02:31 -0800 |
| commit | a203788cfdb38d970086597d7173d9b31fc83aa4 (patch) | |
| tree | c178f94151fc493f017817ce285093059a941d75 | |
| parent | 951395058c6d9e069ccbf767669bddc60bcbe0c8 (diff) | |
| download | tz-a203788cfdb38d970086597d7173d9b31fc83aa4.tar.gz | |
Positive leap second on 2015-06-30.
* leap-seconds.list: Per IERS Bulletin C49 (2015-01-05), a positive leap
second will be inserted into the UTC time scale at the end of
2015-06-30. Update file from NIST, retrieved from
<ftp://time.nist.gov/pub/leap-seconds.3629404800>.
| -rwxr-xr-x[-rw-r--r--] | leap-seconds.list | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/leap-seconds.list b/leap-seconds.list index 0980e7b..17c0466 100644..100755 --- a/leap-seconds.list +++ b/leap-seconds.list @@ -47,7 +47,7 @@ # and can be ignored for many purposes. These differences # are tabulated in Circular T, which is published monthly # by the International Bureau of Weights and Measures -# (BIPM). See www.bipm.fr for more information. +# (BIPM). See www.bipm.org for more information. # # 3. The current definition of the relationship between UTC # and TAI dates from 1 January 1972. A number of different @@ -127,6 +127,15 @@ # with, since the difficulty of unambiguously representing the epoch # during the leap second does not arise. # +# Some systems implement leap seconds by amortizing the leap second +# over the last few minutes of the day. The frequency of the local +# clock is decreased (or increased) to realize the positive (or +# negative) leap second. This method removes the time step described +# above. Although the long-term behavior of the time scale is correct +# in this case, this method introduces an error during the adjustment +# period both in time and in frequency with respect to the official +# defintion of UTC. +# # Questions or comments to: # Judah Levine # Time and Frequency Division @@ -134,7 +143,7 @@ # Boulder, Colorado # Judah.Levine@nist.gov # -# Last Update of leap second values: 11 January 2012 +# Last Update of leap second values: 5 January 2015 # # The following line shows this last update date in NTP timestamp # format. This is the date on which the most recent change to @@ -142,7 +151,7 @@ # be identified by the unique pair of characters in the first two # columns as shown below. # -#$ 3535228800 +#$ 3629404800 # # The NTP timestamps are in units of seconds since the NTP epoch, # which is 1 January 1900, 00:00:00. The Modified Julian Day number @@ -190,10 +199,10 @@ # current -- the update time stamp, the data and the name of the file # will not change. # -# Updated through IERS Bulletin C48 -# File expires on: 28 June 2015 +# Updated through IERS Bulletin C49 +# File expires on: 28 December 2015 # -#@ 3644438400 +#@ 3660249600 # 2272060800 10 # 1 Jan 1972 2287785600 11 # 1 Jul 1972 @@ -221,6 +230,7 @@ 3345062400 33 # 1 Jan 2006 3439756800 34 # 1 Jan 2009 3550089600 35 # 1 Jul 2012 +3644697600 36 # 1 Jul 2015 # # the following special comment contains the # hash value of the data in this file computed @@ -236,4 +246,4 @@ # the hash line is also ignored in the # computation. # -#h a4862ccd c6f43c6 964f3604 85944a26 b5cfad4e +#h 45e70fa7 a9df2033 f4a49ab0 ec648273 7b6c22c |