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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | 1x | /**
* Constants for time conversions like those done by {@link JulianDate}.
*
* @namespace TimeConstants
*
* @see JulianDate
*
* @private
*/
const TimeConstants = {
/**
* The number of seconds in one millisecond: <code>0.001</code>
* @type {number}
* @constant
*/
SECONDS_PER_MILLISECOND: 0.001,
/**
* The number of seconds in one minute: <code>60</code>.
* @type {number}
* @constant
*/
SECONDS_PER_MINUTE: 60.0,
/**
* The number of minutes in one hour: <code>60</code>.
* @type {number}
* @constant
*/
MINUTES_PER_HOUR: 60.0,
/**
* The number of hours in one day: <code>24</code>.
* @type {number}
* @constant
*/
HOURS_PER_DAY: 24.0,
/**
* The number of seconds in one hour: <code>3600</code>.
* @type {number}
* @constant
*/
SECONDS_PER_HOUR: 3600.0,
/**
* The number of minutes in one day: <code>1440</code>.
* @type {number}
* @constant
*/
MINUTES_PER_DAY: 1440.0,
/**
* The number of seconds in one day, ignoring leap seconds: <code>86400</code>.
* @type {number}
* @constant
*/
SECONDS_PER_DAY: 86400.0,
/**
* The number of days in one Julian century: <code>36525</code>.
* @type {number}
* @constant
*/
DAYS_PER_JULIAN_CENTURY: 36525.0,
/**
* One trillionth of a second.
* @type {number}
* @constant
*/
PICOSECOND: 0.000000001,
/**
* The number of days to subtract from a Julian date to determine the
* modified Julian date, which gives the number of days since midnight
* on November 17, 1858.
* @type {number}
* @constant
*/
MODIFIED_JULIAN_DATE_DIFFERENCE: 2400000.5,
};
export default Object.freeze(TimeConstants);
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