11 lines
		
	
	
		
			261 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			11 lines
		
	
	
		
			261 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
 | |
| 
 | |
| var floor = require('./floor');
 | |
| 
 | |
| // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 | |
| 
 | |
| module.exports = function DayFromYear(y) {
 | |
| 	return (365 * (y - 1970)) + floor((y - 1969) / 4) - floor((y - 1901) / 100) + floor((y - 1601) / 400);
 | |
| };
 | |
| 
 |