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LeapSecond

LeapSecond

new

Describes a single leap second, which is constructed from a JulianDate and a numerical offset representing the number of seconds TAI is ahead of the UTC time standard.

Parameters:
Name Type Description
date JulianDate A Julian date representing the time of the leap second.
offset Number The cumulative number of seconds, that TAI is ahead of UTC at provided date.
Example
// Example 1. Construct a LeapSecond using a JulianDate
var date = new Date('January 1, 1990 00:00:00 UTC');
var leapSecond = new Cesium.LeapSecond(Cesium.JulianDate.fromDate(date), 25.0);
var offset = leapSecond.offset;    // 25.0

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// Example 2. Construct a LeapSecond using a date string
var date = 'January 1, 1990 00:00:00 UTC';
var leapSecond = new LeapSecond(date, 25.0);
See:
Source:

Members

:JulianDate

The Julian date at which this leap second occurs.

:Number

The cumulative number of seconds between the UTC and TAI time standards at the time of this leap second.

<static> :Array

The list of leap seconds used throughout Cesium.

Methods

Checks whether two leap seconds are equivalent to each other.

Parameters:
Name Type Description
other LeapSecond The leap second to compare against.
Returns:
Boolean true if the leap seconds are equal; otherwise, false.
Example
var date = new Date('January 1, 1990 00:00:00 UTC');
var leapSecond1 = new Cesium.LeapSecond(Cesium.JulianDate.fromDate(date), 25.0);
var leapSecond2 = new Cesium.LeapSecond(Cesium.JulianDate.fromDate(date), 25.0);
leapSecond1.equals(leapSecond2);     // true

<static>

Given two leap seconds, determines which comes before the other by comparing their respective Julian dates.

Parameters:
Name Type Description
leapSecond1 LeapSecond The first leap second to be compared.
leapSecond2 LeapSecond The second leap second to be compared.
Returns:
Number A negative value if the first leap second is earlier than the second, a positive value if the first leap second is later than the second, or zero if the two leap seconds are equal (ignoring their offsets).
Example
var date = new Date('January 1, 2006 00:00:00 UTC');
var leapSecond1 = new Cesium.LeapSecond(Cesium.JulianDate.fromDate(date), 33.0);
var leapSecond2 = new Cesium.LeapSecond(Cesium.JulianDate.fromDate(date), 34.0);
Cesium.LeapSecond.compareLeapSecondDate(leapSecond1, leapSecond2);    // returns 0
See: