# Countdown from Number

**URL:** https://discourse.nodered.org/t/countdown-from-number/77273
**Category:** General
**Created:** [5 April 2023 12:21 UTC](https://discourse.nodered.org/t/countdown-from-number/77273 "2023-04-05T12:21:31Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [5 April 2023 14:36 UTC](https://discourse.nodered.org/t/countdown-from-number/77273/5 "2023-04-05T14:36:34Z")

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This might help you get a better understanding of persistent context:

> [@A guide to understanding 'Persistent Context'](https://discourse.nodered.org/t/a-guide-to-understanding-persistent-context/4115):
>
> This is something I wrote up after playing with the context options. I've filed a PR with some of this added to the Node-RED documentation but thought I'd release it here also. I hope people find it useful. Paul A guide to understanding 'Persistent Context' Prior to Node-RED v0.19.0, data could be stored in context as a global, flow or node. This was stored in memory and would be reset with a restart of Node-RED. As of v.0.19.0 you can now store node, flow and global context data in memory O…

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_[View the full topic](https://discourse.nodered.org/t/countdown-from-number/77273)._