Date increment/decrement

by mkirkland616

JavaScript

console.clear();
let increment = 200; // How many hours to increment.
let date = new Date(1551891180000); // Date in milliseconds 3/5/2019 5:30pm
console.log('Original Date:', date);

date.setSeconds((increment * 60) * 60); // date.getSeconds() - (1 * 60)

console.log('     New Date:', date);


let date2 = new Date(1551891180000); // Date in milliseconds 3/5/2019 5:30pm
console.log('------------------------------------------------------------------------------------');
console.log('Original Date2:', date2);
console.log('     New Date2:', new Date(date2.getTime() - 63000000)); // 63,000,000  ~ 63,000

let t = new Date(1551852000000).setSeconds(0)
console.log(new Date(t));