> For the complete documentation index, see [llms.txt](https://supercartapp.gitbook.io/supercart-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://supercartapp.gitbook.io/supercart-docs/other-features/promotion-countdown-timer.md).

# Promotion Countdown Timer