leapsecs.txt

# http://cr.yp.to/libtai/leapsecs.txt, version 2017-01-06
#
# Official sources:
# http://maia.usno.navy.mil/leapsec.html
# http://hpiers.obspm.fr/webiers/general/earthor/utc/UTC.html
#
# Dates must be listed in sorted order.
# + means a positive leap second, inserting 23:59:60 UTC.
# - means a negative leap second, skipping 23:59:59 UTC.
#
# Note for parsers: Negative leap seconds will probably never happen, but
# the year 10000 will happen. Please don't contribute to the Y10K problem.
#
# 1972-01-01 00:00:00 UTC was 1972-01-01 00:00:10 TAI.
# 
+1972-06-30
+1972-12-31
+1973-12-31
+1974-12-31
+1975-12-31
+1976-12-31
+1977-12-31
+1978-12-31
+1979-12-31
+1981-06-30
+1982-06-30
+1983-06-30
+1985-06-30
+1987-12-31
+1989-12-31
+1990-12-31
+1992-06-30
+1993-06-30
+1994-06-30
+1995-12-31
+1997-06-30
+1998-12-31
+2005-12-31
+2008-12-31
+2012-06-30
+2015-06-30
+2016-12-31