úÎ b &(Copyright (C) 2009-2016 Bjorn BuckwalterBSD3bjorn.buckwalter@gmail.comstablefullSafeÿList of all leap seconds up to 2017-01-01. An estimate of hypothetical leap seconds prior to 1972-01-01 is included. These can be understood as leap seconds that may have been introduced had UTC used the SI second since its inception in 1961. One should be extremely careful in using this information as it is generally not appropriate. One specific case where it may be useful is in reducing the error in computed time differences between UTC time stamps in the 1961--1971 range from the order of 10 SI seconds to 1 SI second.@List of all official leap seconds from 1972-01-01 to 2017-01-01.< containing all leap seconds from 1972-01-01 to 2017-01-01.1leapseconds-announced-2017-LIcapOm5YpOE1Ad3mX7ncP$Data.Time.Clock.AnnouncedLeapSecondslstpseudoLeapSeconds leapSeconds time-1.6.0.1Data.Time.Clock.TAILeapSecondTable