Catalogue record · hackernews
Free online countdown timer with alarm. Set any time up to 12 hours, pick one of 19 styles like a dial or hourglass and go full screen. No sign-up.
Online timer you can see 提供免费在线倒计时功能，支持设定不同样式的倒计时器，可以全屏使用且不需要注册。
Seen on hackernews · last checked 2026-10-23.
The teardown — how it actually charges, which mechanism was found, and the seam worth taking — is in the daily letter. This page carries the record and the signals so search engines and link previews have something real to read; the judgement stays with the readers who asked for it.
Get the daily letterThe same record sits in the full catalogue, where every entry can be searched and filtered by the signals above.