Calendar
Deadline Countdown
A deadline card: the remainder spelled out instead of a ticking timer, a ring of elapsed time and the due date in a human-readable line.
React + Tailwind, shadcn-compatible: press “Copy for AI” and your Cursor or Claude Code agent installs it with the shadcn CLI.
What you can change
- the due date through deadline, the reference time through now and the start of the count through startedAt
- the task name through heading
- the wording through unitsText, remainingText, overdueText and dueText
A link for your AI agent: preview, code and instructions.
Preview
Use it with AI
- 1. Copy the link.
- 2. Write to your agent in your own words and drop the link into the sentence.
- 3. The agent opens the link and installs the component from the registry.
put this on the home page as the hero:
https://vibeui.club/c/calendar-020?lang=en&theme=dark
Not sure where to paste it? Step-by-step guide
Show the full instructions
What the link says, spelled out. Use it when your agent cannot open links — paste this text instead.
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How to use
<Calendar020
deadline="2026-04-01T18:00"
now="2026-03-14T09:30"
startedAt="2026-02-20T10:00"
heading="Mockups due"
/>A sample call. The agent installs the component itself from the registry via the “Copy for AI” link.
Settings
- Name
heading· default: Mockups due- Due date
deadline· default: 2026-04-01T18:00- Label language
locale· default: ru-RU- Accent
accent· default: theme colour- Surface
background· default: theme colour
More in Calendar
FAQ
- How do I add Deadline Countdown with Cursor or Claude Code?
- Press “Copy for AI” on this page and paste it into your agent's chat. The instruction contains the shadcn CLI install command, the dependencies and what to keep, so the agent installs this exact component instead of recreating a lookalike.
- What does Deadline Countdown depend on?
- No npm packages beyond React and Tailwind CSS.
- What can I change in Deadline Countdown?
- Adapt: the due date through deadline, the reference time through now and the start of the count through startedAt; the task name through heading; the wording through unitsText, remainingText, overdueText and dueText. Keep as installed: the local --vibeui-calendar-020-* palette — with theme tokens the card stops matching the preview; the reference time passed as the now string: new Date() during render splits server and client and breaks hydration; the remainder in words instead of a ticking timer: seconds are useless on a multi-week deadline and require client code.
- Is Deadline Countdown free?
- Yes. The preview is open without an account; with a free account you can copy up to 20 components a month.
For developers
npx shadcn@latest add https://vibeui.club/r/pro/calendar-020.jsonThis command needs a signed link: sign in and open “Component source” below — it issues a working link valid for 30 minutes. All install options
Technical notes
A server component: both the deadline and the reference "now" arrive as strings, so the render is deterministic and hydration does not drift — new Date() in the markup would be a mistake. The remainder is turned into words with Russian declension: for a term of weeks the seconds are useless, and a ticking timer requires a client. The ring shows the share of the term burned from startedAt to deadline: a percentage frightens more precisely than the remaining days on their own. The hole in the ring is made by a mask on a separate layer rather than a plug circle: a plug has to match the card background, while a mask works on any surface and does not eat the caption above it. The tone is switched by the data-tone attribute: three days before the due date the card turns yellow, after the due date it turns red and changes the wording to "overdue".
Tags
- calendar
- deadline
- countdown
- progress
Component source
The same file your agent installs. Here in case you would rather copy it by hand.
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