June 30, 2012 will be a second longer: 23:59:60
The International Earth Rotation Service notifies that by June 2012 a positive second of coordination is added. The sequence will be:
06/30/2012 23 h 59 min 59 s
06/30/2012 23 h 59 min 60 s
01.07.2012 00 h 00 min 00 s
The difference between UTC and international atomic time:
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from 01.01.2009 00 h UTC until 01/07/2012 00 h UTC: UTC-TAI = -34 s
01.07.2012 00 h UTC until further notice: UTC-TAI = -35 s
Coordination seconds since 1972 are added to December or June, so that the UTC time does not differ from UT1 by more than 0.9 s.
The discussion about the cancellation of seconds of coordination (according to the USA, they interfere with the normal operation of communication systems) was postponed until 2015 .
06/30/2012 23 h 59 min 59 s
06/30/2012 23 h 59 min 60 s
01.07.2012 00 h 00 min 00 s
The difference between UTC and international atomic time:
')
from 01.01.2009 00 h UTC until 01/07/2012 00 h UTC: UTC-TAI = -34 s
01.07.2012 00 h UTC until further notice: UTC-TAI = -35 s
Coordination seconds since 1972 are added to December or June, so that the UTC time does not differ from UT1 by more than 0.9 s.
The discussion about the cancellation of seconds of coordination (according to the USA, they interfere with the normal operation of communication systems) was postponed until 2015 .
Source: https://habr.com/ru/post/145857/
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