MomentJS can calculate all that for you without you doing any logic.
- First find the difference between the two moments
- Express it as a Duration
- Then display whichever component
.days()
,.hours()
of the duration that you want.
Note: You can also express the entire duration .asDays()
, .asHours()
etc if you want.
const now = moment("2017-01-26T14:21:22+0000");
const expiration = moment("2017-01-29T17:24:22+0000");
// get the difference between the moments
const diff = expiration.diff(now);
//express as a duration
const diffDuration = moment.duration(diff);
// display
console.log("Days:", diffDuration.days());
console.log("Hours:", diffDuration.hours());
console.log("Minutes:", diffDuration.minutes());
<script src="https://momentjs.com/downloads/moment.js"></script>