Handle Unix timestamps in JavaScript/TypeScript/Node.js using the native `Date` object.
// Get current timestamp (milliseconds)
const tsMs = Date.now();
// Get in seconds (for backend/API)
const tsSec = Math.floor(Date.now() / 1000);const date = new Date('2024-01-01T00:00:00Z');
const ts = Math.floor(date.getTime() / 1000);const ts = 1704067200;
const date = new Date(ts * 1000);
console.log(date.toISOString());