Category: Developer & ops
Flip-clock style countdown display showing hours, minutes, and seconds in individual digit tiles. Renders a static snapshot of the target time — pair with a dataModelUpdate SSE stream to tick the values.
| Surface | Note |
|---|---|
| google-chat | Renders as plain text time string |
| Renders as static time display |
| Field | Type | Required |
|---|---|---|
| hours | integer. Hours component. Default 0. | optional |
| minutes | integer. Minutes component. Default 4. | optional |
| seconds | integer. Seconds component. Default 59. | optional |
| label | string. Caption below the timer. | optional |
| variant | "dark" | "light" (optional, default "dark"). | optional |
| accent | string. Separator and accent colour. Default "#00f2ff". | optional |
{
"type": "countdown_timer"
}{
"identifier": "urn:air:a2uicatalog.ai:atom:countdown_timer",
"displayName": "Countdown Timer",
"type": "application/vnd.a2ui.atom+json",
"url": "https://a2uicatalog.ai/atoms/countdown_timer/",
"capabilities": [
"web",
"google-meet-stage",
"google-apps-script-web",
"mcp-apps",
"android"
],
"description": "Flip-clock style countdown display showing hours, minutes, and seconds in individual digit tiles. Renders a static snapshot of the target time \u2014 pair with a dataModelUpdate SSE stream to tick the values.",
"representativeQueries": [
"show a Flip-clock countdown timer display (static tiles, data-driven ticking)",
"flip-clock style countdown display showing hours, minutes, and seconds in individual digit tiles. re",
"render a countdown timer"
]
}The renderer is an open-source Google Apps Script web app. Deploy your own instance in 4 commands — you own the URL, no dependency on the demo endpoint.
git clone https://github.com/a2uicatalog/a2ui
cd a2ui/apps-script-surface/gas-wired-renderer
clasp push && clasp deploy