You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1014 B
47 lines
1014 B
'use strict'; |
|
|
|
var DayWithinYear = require('./DayWithinYear'); |
|
var InLeapYear = require('./InLeapYear'); |
|
|
|
// https://262.ecma-international.org/5.1/#sec-15.9.1.4 |
|
|
|
module.exports = function MonthFromTime(t) { |
|
var day = DayWithinYear(t); |
|
if (0 <= day && day < 31) { |
|
return 0; |
|
} |
|
var leap = InLeapYear(t); |
|
if (31 <= day && day < (59 + leap)) { |
|
return 1; |
|
} |
|
if ((59 + leap) <= day && day < (90 + leap)) { |
|
return 2; |
|
} |
|
if ((90 + leap) <= day && day < (120 + leap)) { |
|
return 3; |
|
} |
|
if ((120 + leap) <= day && day < (151 + leap)) { |
|
return 4; |
|
} |
|
if ((151 + leap) <= day && day < (181 + leap)) { |
|
return 5; |
|
} |
|
if ((181 + leap) <= day && day < (212 + leap)) { |
|
return 6; |
|
} |
|
if ((212 + leap) <= day && day < (243 + leap)) { |
|
return 7; |
|
} |
|
if ((243 + leap) <= day && day < (273 + leap)) { |
|
return 8; |
|
} |
|
if ((273 + leap) <= day && day < (304 + leap)) { |
|
return 9; |
|
} |
|
if ((304 + leap) <= day && day < (334 + leap)) { |
|
return 10; |
|
} |
|
if ((334 + leap) <= day && day < (365 + leap)) { |
|
return 11; |
|
} |
|
};
|
|
|