# Refresh cells on a timer

**URL:** <https://talk.observablehq.com/t/refresh-cells-on-a-timer/4447>\
**Category:** Help\
**Created:** [January 10, 2021, 7:16pm UTC](https://talk.observablehq.com/t/refresh-cells-on-a-timer/4447 "2021-01-10T19:16:44Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![mootari](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.observablehq.com/mootari/32/581_2.png) [@mootari](https://talk.observablehq.com/u/mootari)\
**Post date:** [January 13, 2021, 7:52pm UTC](https://talk.observablehq.com/t/refresh-cells-on-a-timer/4447/13 "2021-01-13T19:52:10Z")

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I’ve added a section to [Fighting Against (Run-)Time / Fabian Iwand / Observable](https://observablehq.com/@mootari/fighting-against-run-time) - notice how the `ticks_since_hours_invalidation` generator cell never counts up higher than 2.

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