80 # 61, Av. de l'Observatoire 75014 PARIS (France) |
80 # 61, Av. de l'Observatoire 75014 PARIS (France) |
81 # Tel. : 33 (0) 1 40 51 22 26 |
81 # Tel. : 33 (0) 1 40 51 22 26 |
82 # FAX : 33 (0) 1 40 51 22 91 |
82 # FAX : 33 (0) 1 40 51 22 91 |
83 # Internet : services.iers@obspm.fr |
83 # Internet : services.iers@obspm.fr |
84 # |
84 # |
85 # Paris, 4 July 2009 |
85 # Paris, 14 July 2010 |
86 # |
86 # |
87 # Bulletin C 38 |
87 # Bulletin C 40 |
88 # |
88 # |
89 # To authorities responsible |
89 # To authorities responsible |
90 # for the measurement and |
90 # for the measurement and |
91 # distribution of time |
91 # distribution of time |
92 # |
92 # |
93 # INFORMATION ON UTC - TAI |
93 # INFORMATION ON UTC - TAI |
94 # |
94 # |
95 # NO positive leap second will be introduced at the end of December 2009. |
95 # NO positive leap second will be introduced at the end of December 2010. |
96 # The difference between Coordinated Universal Time UTC and the |
96 # The difference between Coordinated Universal Time UTC and the |
97 # International Atomic Time TAI is : |
97 # International Atomic Time TAI is : |
98 # |
98 # |
99 # from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s |
99 # from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s |
100 # |
100 # |
101 # Leap seconds can be introduced in UTC at the end of the months of December |
101 # Leap seconds can be introduced in UTC at the end of the months of December |
102 # or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every |
102 # or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every |
103 # six months, either to announce a time step in UTC, or to confirm that there |
103 # six months, either to announce a time step in UTC, or to confirm that there |
104 # will be no time step at the next possible date. |
104 # will be no time step at the next possible date. |
105 # |
105 # |
106 # Daniel GAMBIS |
106 # Daniel GAMBIS |
107 # Director |
107 # Director |
108 # Earth Orientation Center of IERS |
108 # Earth Orientation Center of IERS |
109 # Observatoire de Paris, France |
109 # Observatoire de Paris, France |