Question

How to calculate the number of days between two dates in Node.js

Answer 1

function days_difference(startDate, endDate) {
	const oneDay = 24 * 60 * 60 * 1000; // hours * minutes * seconds * milliseconds
    
    return Math.round((endDate - startDate) / oneDay);
}
 
 
const dt1 = new Date('6/13/2022')
 
const dt2 = new Date('6/17/2022')
 
console.log(days_difference(dt1, dt2));
 
 
 
 
/*
run:
       
4
     
*/

 

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Answer 2

function getDaysBetween2Dates(startDate, endDate) {
    const milliseconInADay = 24 * 60 * 60 * 1000;
 
    return Math.round(Math.abs(endDate - startDate) / milliseconInADay);
}
 
console.log(getDaysBetween2Dates(new Date('2022-04-03'), new Date('2022-04-11')));
 
   
   
   
   
/*
run:
   
8
   
*/

 

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