Hi, @Eleger, this is a change you can make on the web-based dashboard. There is a link (top right) on every page in the Community forums. Click on "Dashboard" then click on the gear icon (top right). Choose "settings" from the menu and scroll down to "clock display" amd choose 24 hour. Be sure to save your changes and sync your Fitbit.
Sense, Charge 5, Inspire 2; iOS and Android
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