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Thread-Topic: [FreeBSD-users-jp 66530] Re: "#define JAN_1970 0x83aa7e80" in ntpsource
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Subject: [FreeBSD-users-jp 66534] RE: "#define JAN_1970 0x83aa7e80" in ntpsource
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$BE*>l$G$9!%(J

$B>.>>$5$s!$AaB.$N%j%W%i%$$I$&$b$"$j$,$H$&$4$6$$$^$9!%(J

> 	$B9q:]86;R;~(J(TAI)$B$NF3F~$,7hDj$5$l$?$N$,(J, 1960 $BG/Be$N8eH>(J
> 	$B<B:]$K1?MQ3+;O$5$l$?$N$,(J 1970 $BG/$@$+(J 1971 $BG/(J
> $B$@$C$?$h$&$J5-21$,(J...	 > $B<1<T$N%U%)%m!<5a$`(J

> $B1<IC<+BN$O(J TAI $B$H(J UTC $B$N8m:9Jd@5$H$7$FF3F~$5$l$?$O$:$J$s$G(J,
> $B$b$7$+$7$F(J, $B1<IC<+BN$,B8:_$7$J$$$C$F;v$8$c$"$j$^$;$s$+(J?

/usr/src/share/zoneinfo/leapseconds
$B$K5-:\$5$l$F$$$k1<IC$O$4B8CN$N$h$&$K(J1972$BG/0J9_$N$b$N$G$9$,!$(J
Historical List of Leap Seconds$B$H$7$F(J
http://tycho.usno.navy.mil/leapsec.html
$B$+$i%j%s%/$5$l$?(J
ftp://maia.usno.navy.mil/ser7/tai-utc.dat
$B$K$O$D$.$N$h$&$K!$$=$l0JA0$N5-=R$b$"$j$^$9!%(J
$B$?$@$7!$(J1972$BG/0JA0$N5-=RK!$O$=$l0J8e$H0c$C$F$$$F!$$3$NJU$OM}2rITG=$G$9!%(J
 1961 JAN  1 =JD 2437300.5  TAI-UTC=   1.4228180 S + (MJD - 37300.) X 0.
001296 S
 1961 AUG  1 =JD 2437512.5  TAI-UTC=   1.3728180 S + (MJD - 37300.) X 0.
001296 S
 1962 JAN  1 =JD 2437665.5  TAI-UTC=   1.8458580 S + (MJD - 37665.) X 0.
0011232S
 1963 NOV  1 =JD 2438334.5  TAI-UTC=   1.9458580 S + (MJD - 37665.) X 0.
0011232S
 1964 JAN  1 =JD 2438395.5  TAI-UTC=   3.2401300 S + (MJD - 38761.) X 0.
001296 S
 1964 APR  1 =JD 2438486.5  TAI-UTC=   3.3401300 S + (MJD - 38761.) X 0.
001296 S
 1964 SEP  1 =JD 2438639.5  TAI-UTC=   3.4401300 S + (MJD - 38761.) X 0.
001296 S
 1965 JAN  1 =JD 2438761.5  TAI-UTC=   3.5401300 S + (MJD - 38761.) X 0.
001296 S
 1965 MAR  1 =JD 2438820.5  TAI-UTC=   3.6401300 S + (MJD - 38761.) X 0.
001296 S
 1965 JUL  1 =JD 2438942.5  TAI-UTC=   3.7401300 S + (MJD - 38761.) X 0.
001296 S
 1965 SEP  1 =JD 2439004.5  TAI-UTC=   3.8401300 S + (MJD - 38761.) X 0.
001296 S
 1966 JAN  1 =JD 2439126.5  TAI-UTC=   4.3131700 S + (MJD - 39126.) X 0.
002592 S
 1968 FEB  1 =JD 2439887.5  TAI-UTC=   4.2131700 S + (MJD - 39126.) X 0.
002592 S
 1972 JAN  1 =JD 2441317.5  TAI-UTC=  10.0       S + (MJD - 41317.) X 0.
0      S
 1972 JUL  1 =JD 2441499.5  TAI-UTC=  11.0       S + (MJD - 41317.) X 0.
0      S
 1973 JAN  1 =JD 2441683.5  TAI-UTC=  12.0       S + (MJD - 41317.) X 0.
0      S
 1974 JAN  1 =JD 2442048.5  TAI-UTC=  13.0       S + (MJD - 41317.) X 0.
0      S
$B!J0J2<N,!K(J
$B0lJ}(J
http://www.miz.nao.ac.jp/leapsec97.html
$B$N?^$r$_$k$H!$1<IC$NA^F~$O(J1972$BG/$+$i$_$?$$$J$N$G!$(J
$B$=$l0JA0$O!V2?$b$7$J$$!W$H$$$&$N$,!$LsB+$J$N$+$J$H>!<j$K2r<a$7$F$$$^$9!%(J

 
