zonelyy
For event pages

Show your event time in every visitor's timezone

Drop one script tag on your event page. Visitors land, see the time in their own timezone, click through to the full converter if they want more. Free, under 2 KB, no sign-up, no tracking.

Build your snippet

Try it now

Fill in your event details below — the snippet and live preview update as you type. Copy and paste into your event page.

Times you enter here are in your own timezone. The snippet stores the event as UTC so visitors anywhere see it correctly.
Max 100 characters. Omit to hide the event label.
Live preview
Rendered using the actual embed.js — exactly what your visitors will see.
Copy this snippet
<script src="https://zonelyy.com/embed.js"
        data-utc="2026-06-15T21:00"
        data-event="Our Webinar"
        async></script>
Paste this exactly where you want the widget to appear — typically right under your event title or date.
All options

Attributes reference

AttributeRequiredFormatDefault
data-utcYesISO 8601 UTC instant, e.g. 2026-06-15T14:00 or 2026-06-15T14:00:00Z—
data-eventNoFree-text event name, max 100 chars(no event line shown)
data-ctaNoText of the “open full converter” linkView in your timezone →
data-themeNolight | dark | autoauto
Use cases

Who this is for

Webinar & conference pages

Replace “Tuesday at 2 PM ET” with a line that auto-converts. Slashes “what time is this for me?” questions in the chat.

Live streams & launches

Game launches, product reveals, AMA streams — every viewer sees the countdown moment in their own clock, including DST shifts.

Religious & community calendars

Online services, group calls, study sessions — show the time in attendees' cities without negotiating “UTC+? again?” in email.

Hackathons & CTFs

Global competitions where participants span continents. Each contestant sees start/end times correctly without doing the math.

FAQ

Frequently asked questions

How big is the script?

Under 2 KB gzipped. It makes zero network requests after loading — no fonts, no analytics, no images.

Will it slow my page down?

No. It loads async, runs in under 30 ms on mid-range mobile, and contributes 0 to Cumulative Layout Shift.

Will your CSS break my page?

No. The widget renders inside a closed Shadow DOM — its styles cannot leak out, and your page's styles cannot leak in.

Do you track my visitors?

No. The widget makes zero network requests after the script loads. No cookies, no localStorage, no analytics ping. Visitor data never leaves their browser.

Is it really free?

Yes — completely free, no sign-up, no rate limit. A small "powered by Zonelyy" link in the corner is the only attribution; we may add a paid option to remove it later.

What about daylight saving time?

Handled automatically. The widget formats the event time using each visitor's local timezone rules from the IANA database in their browser.

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