Lines Matching full:seconds

5 #	clocks. UTC differs from TAI by an integer number of seconds; it is the basis
19 #	Leap seconds are needed to keep the two time scales in agreement, i.e. UT1-UTC smaller
20 #	than 0.9 seconds. Therefore, when necessary a "leap second" is applied to UTC.
21 #	Since the adoption of this system in 1972 it has been necessary to add a number of seconds to UTC,
25 #	all leap seconds have been positive (a second has been added to UTC). Based on what we know about
31 #       leap second at a rate of 1 to 2 years. Since the year 2000 leap seconds are introduced with…
38 #	Observatory. According to international agreements, leap seconds should be scheduled only for cer…
40 #	and September. Since the introduction of leap seconds in 1972, only dates in June and December we…
55 #	given in units of seconds since 1900.0.
74 #	LIST OF LEAP SECONDS
75 #	NTP timestamp (X parameter) is the number of seconds since 1900.0
79 #	DTAI: The difference DTAI= TAI-UTC in units of seconds