compare timestamps in javascript

Question

I have a date saved in a string with this format: 2017-09-28T22:59:02.448804522Z this value is provided by a backend service.

Now, in javascript how can

Answer 1

You could also convert it to unix time in milliseconds:

console.log(new Date('2017-09-28T22:59:02.448804522Z').valueOf())

const currentTime = new Date('2017-09-28T22:59:02.448804522Z').valueOf()
    
const expiryTime = new Date('2017-09-29T22:59:02.448804522Z').valueOf()

if (currentTime < expiryTime) {
    console.log('not expired')
}