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1 # |
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2 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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3 # |
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4 # This code is free software; you can redistribute it and/or modify it |
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5 # under the terms of the GNU General Public License version 2 only, as |
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6 # published by the Free Software Foundation. Sun designates this |
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7 # particular file as subject to the "Classpath" exception as provided |
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8 # by Sun in the LICENSE file that accompanied this code. |
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9 # |
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10 # This code is distributed in the hope that it will be useful, but WITHOUT |
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11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 # version 2 for more details (a copy is included in the LICENSE file that |
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14 # accompanied this code). |
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15 # |
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16 # You should have received a copy of the GNU General Public License version |
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17 # 2 along with this work; if not, write to the Free Software Foundation, |
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18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 # |
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20 # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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21 # CA 95054 USA or visit www.sun.com if you need additional information or |
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22 # have any questions. |
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23 # |
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24 |
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25 # Allowance for leapseconds added to each timezone file. |
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26 |
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27 # The International Earth Rotation Service periodically uses leap seconds |
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28 # to keep UTC to within 0.9 s of UT1 |
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29 # (which measures the true angular orientation of the earth in space); see |
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30 # Terry J Quinn, The BIPM and the accurate measure of time, |
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31 # Proc IEEE 79, 7 (July 1991), 894-905. |
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32 # There were no leap seconds before 1972, because the official mechanism |
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33 # accounting for the discrepancy between atomic time and the earth's rotation |
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34 # did not exist until the early 1970s. |
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35 |
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36 # The correction (+ or -) is made at the given time, so lines |
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37 # will typically look like: |
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38 # Leap YEAR MON DAY 23:59:60 + R/S |
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39 # or |
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40 # Leap YEAR MON DAY 23:59:59 - R/S |
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41 |
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42 # If the leapsecond is Rolling (R) the given time is local time |
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43 # If the leapsecond is Stationary (S) the given time is UTC |
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44 |
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45 # Leap YEAR MONTH DAY HH:MM:SS CORR R/S |
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46 Leap 1972 Jun 30 23:59:60 + S |
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47 Leap 1972 Dec 31 23:59:60 + S |
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48 Leap 1973 Dec 31 23:59:60 + S |
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49 Leap 1974 Dec 31 23:59:60 + S |
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50 Leap 1975 Dec 31 23:59:60 + S |
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51 Leap 1976 Dec 31 23:59:60 + S |
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52 Leap 1977 Dec 31 23:59:60 + S |
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53 Leap 1978 Dec 31 23:59:60 + S |
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54 Leap 1979 Dec 31 23:59:60 + S |
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55 Leap 1981 Jun 30 23:59:60 + S |
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56 Leap 1982 Jun 30 23:59:60 + S |
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57 Leap 1983 Jun 30 23:59:60 + S |
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58 Leap 1985 Jun 30 23:59:60 + S |
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59 Leap 1987 Dec 31 23:59:60 + S |
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60 Leap 1989 Dec 31 23:59:60 + S |
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61 Leap 1990 Dec 31 23:59:60 + S |
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62 Leap 1992 Jun 30 23:59:60 + S |
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63 Leap 1993 Jun 30 23:59:60 + S |
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64 Leap 1994 Jun 30 23:59:60 + S |
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65 Leap 1995 Dec 31 23:59:60 + S |
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66 Leap 1997 Jun 30 23:59:60 + S |
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67 Leap 1998 Dec 31 23:59:60 + S |
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68 Leap 2005 Dec 31 23:59:60 + S |
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69 |
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70 # INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) |
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71 # SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE |
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72 # |
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73 # SERVICE DE LA ROTATION TERRESTRE |
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74 # OBSERVATOIRE DE PARIS |
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75 # 61, Av. de l'Observatoire 75014 PARIS (France) |
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76 # Tel. : 33 (0) 1 40 51 22 26 |
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77 # FAX : 33 (0) 1 40 51 22 91 |
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78 # Internet : services.iers@obspm.fr |
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79 # |
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80 # Paris, 28 June 2007 |
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81 # |
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82 # Bulletin C 34 |
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83 # |
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84 # To authorities responsible |
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85 # for the measurement and |
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86 # distribution of time |
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87 # |
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88 # INFORMATION ON UTC - TAI |
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89 # |
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90 # NO positive leap second will be introduced at the end of December 2007. |
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91 # The difference between Coordinated Universal Time UTC and the |
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92 # International Atomic Time TAI is : |
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93 # |
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94 # from 2006 January 1, 0h UTC, until further notice : UTC-TAI = -33 s |
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95 # |
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96 # Leap seconds can be introduced in UTC at the end of the months of December |
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97 # or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every |
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98 # six months, either to announce a time step in UTC, or to confirm that there |
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99 # will be no time step at the next possible date. |
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100 # |
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101 # Daniel GAMBIS |
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102 # Director |
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103 # Earth Orientation Center of IERS |
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104 # Observatoire de Paris, France |