JSFiddle - React, Tailwind, and code Playground
JavaScript
var now = new Date();
var UTCDate = Date.UTC(now.getFullYear(), now.getMonth(), now.getDate(), 16, 30);
var dateOfEvent = new Date(UTCDate);
var timeRemaining = dateOfEvent.getTime() - now.getTime();
console.log('FUTURE DATE TIME', dateOfEvent);
console.log('CURRENT DATE TIME', now);