Source Code

<section class="lcc-hero">
  <div class="lcc-inner">
    <span class="lcc-eyebrow">Coming soon</span>
    <h1 class="lcc-headline">We're launching soon</h1>
    <p class="lcc-sub">Something we've been building for months is almost ready. Be the first to know when the doors open.</p>

    <div class="lcc-boxes" id="lccBoxes">
      <div class="lcc-box"><span class="lcc-num" id="lccDays">00</span><span class="lcc-label">Days</span></div>
      <div class="lcc-box"><span class="lcc-num" id="lccHours">00</span><span class="lcc-label">Hours</span></div>
      <div class="lcc-box"><span class="lcc-num" id="lccMinutes">00</span><span class="lcc-label">Minutes</span></div>
      <div class="lcc-box"><span class="lcc-num" id="lccSeconds">00</span><span class="lcc-label">Seconds</span></div>
    </div>

    <form class="lcc-notify" id="lccForm">
      <input type="email" class="lcc-input" id="lccEmail" placeholder="you@example.com" required />
      <button type="submit" class="lcc-btn">Notify me</button>
    </form>
    <div class="lcc-confirm" id="lccConfirm" hidden>You're on the list — we'll email you at launch.</div>
  </div>
</section>

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Launch Countdown Clock — Free HTML CSS JS Snippet

Launch Countdown Clock · Heroes · Plain HTML, CSS & JS · Live preview

TagsGlassmorphismLanding PageTimers & Clocks

What's included

Features

Hero section with headline, subtext, four-box countdown, and an email capture form
Countdown recomputed from a fixed target Date and Date.now() on every tick, avoiding drift from setInterval timing variance
Four independently labeled Days/Hours/Minutes/Seconds boxes with tabular-numeral formatting
Automatically stops and zeroes out once the target date is reached
Notify-me email form that swaps to a confirmation message on submit
Frosted-glass styled countdown boxes over a radial gradient hero background
Fully responsive layout that wraps the countdown boxes and form on narrow screens
No external date library — built entirely on the native Date object

About this UI Snippet

Launch Countdown Clock — Hero Countdown-to-Launch Section

Screenshot of the Launch Countdown Clock snippet rendered live

Pre-launch and "coming soon" pages typically lead with a countdown to build anticipation for a fixed date. This snippet implements that as a full hero section: a headline, a row of four countdown boxes, and an email capture form, with the countdown logic built to avoid the drift that a naive decrementing timer would accumulate.

A fixed target date computed once

TARGET_DATE is set once at load time as new Date(Date.now() + 14 * 24 * 60 * 60 * 1000) — 14 days out from whenever the page loads. In a real deployment this would instead be a fixed, hardcoded date (e.g. your actual launch date), but computing it relative to load time here keeps the demo always showing a live, non-expired countdown.

Recomputed from the timestamp on every tick, not decremented

Rather than subtracting one second from a counter every tick, tick() recalculates the entire remaining duration from scratch as TARGET_DATE.getTime() - Date.now() each time setInterval fires, then derives days/hours/minutes/seconds from that fresh millisecond value via integer division and modulo. Because every tick independently re-derives the correct remaining time from two real timestamps, small delays in when setInterval actually fires (which are common, especially in background tabs) never accumulate into visible drift.

Four independent unit boxes

Days, hours, minutes, and seconds are each written to their own <span> with padStart(2, '0') for consistent two-digit formatting, laid out as four separate boxed cards — a common visual pattern for launch countdowns that reads clearly at a glance even before someone processes the exact numbers.

A simple notify-me capture

The email form's submit handler prevents the default page reload, does a minimal non-empty check, and swaps the form out for a confirmation message — a realistic front-end interaction pattern ready to be wired to a real email capture endpoint.

Step by step

How to Use

  1. 1
    Load the snippetClick "Launch Countdown Clock" in the sidebar to load its HTML, CSS, and JS into the editor panels. The preview updates instantly.
  2. 2
    Edit the codeModify any panel — HTML, CSS, or JS. The preview refreshes as you type. Use Reset in each panel header to restore the original.
  3. 3
    Preview on devicesClick the Mobile (375px), Tablet (768px), or Desktop buttons in the preview header to check responsiveness.
  4. 4
    Export in your formatClick "HTML" to download a standalone file, "JSX" for a React component, "Tailwind" for a React + Tailwind CSS component, "Tailwind HTML" for a standalone HTML file with Tailwind CDN, "Vue" for a Vue 3 SFC with <template>/<script setup>/<style scoped>, or "Angular" for a standalone Angular .component.ts file. "Copy all" copies the full code to clipboard.
  5. 5
    Save your versionClick "Save as", type a name, and press Enter. Your snippet saves to IndexedDB and appears in the Saved tab.

Real-world uses

Common Use Cases

Product launch and "coming soon" landing pages
The defining use case — build anticipation with a live countdown to a real launch date.
Event registration and ticket-sale pages
Count down to when registration or sales open, paired with an email waitlist capture.
Waitlist and early-access campaigns
Combine urgency (the countdown) with a direct capture mechanism (the notify-me form).
Teaching drift-free countdown implementation
A clear example of deriving remaining time from two timestamps instead of decrementing a counter.

Got questions?

Frequently Asked Questions

Replace the TARGET_DATE line with a fixed date, e.g. new Date('2026-12-01T09:00:00'), instead of computing it relative to Date.now(). The rest of the countdown logic works unchanged against any fixed target date.

setInterval isn't guaranteed to fire at exactly 1000ms intervals — delays can accumulate, especially in backgrounded tabs. By recalculating remaining = TARGET_DATE - Date.now() fresh on every tick, the displayed countdown is always accurate regardless of any timing variance in when a tick actually runs.

All four boxes display "00" and the interval is cleared via clearInterval, stopping further updates. You can extend this to show a "We're live!" message or redirect instead.

No — it's a front-end-only simulation that swaps the form for a confirmation message on submit. Wire the submit handler to your real email capture or CRM endpoint to make it functional.