Countdown for your site
Set a label and a target moment, choose light or dark, and copy the snippet. It is self-contained HTML and JavaScript that counts down on the visitor's device — no iframe, no account, no requests back to this site.
Time zones and your target
The snippet stores the target as a UTC instant, so it counts down to the same moment for every visitor regardless of their time zone. If you want "midnight local time wherever the visitor is", edit the new Date(...) call in the snippet to use a local date string without the Z suffix.