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The Raspberry Pi **does not include a hardware clock** which means that if the plug is not connected to Internet, the **date and time reported by the system are not reliable**.
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The Raspberry Pi **does not include a hardware clock** which means that if the plug is not connected to Internet, the **date and time reported by the system are not reliable**.
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If you need accurate time, for MediaWiki/WikiFundi for instance, **you will have to buy** a [separate Hardware Clock](https://afterthoughtsoftware.com/products/rasclock) and plug it to your Pi.
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If you need accurate time (MediaWiki/WikiFundi needs it for instance), **you will have to buy** a [separate Hardware Clock](https://afterthoughtsoftware.com/products/rasclock) and plug it to your Pi.
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# RasClock
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# RasClock
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... | @@ -12,11 +12,15 @@ The RasClock needs to be configured the very first time it is used (or whenever |
... | @@ -12,11 +12,15 @@ The RasClock needs to be configured the very first time it is used (or whenever |
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# Configuring the clock (once)
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# Configuring the clock (once)
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![page_rasclock-install](/uploads/58643dc1b24890a6baf6ab9693bc58ef/page_rasclock-install.jpg)
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1. Buy a RasClock module and a battery if not provided.
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1. Buy a RasClock module and a battery if not provided.
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1. Insert the battery into the module, matching the `+` on both the module and the battery (the larger side of the battery facing you).
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1. Insert the battery into the module, matching the `+` on both the module and the battery (the larger side of the battery facing you).
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1. Plug the module into the RaspberryPi: connecting it on the corner of the long pins rows (GPIO connectors).
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1. Plug the module into the RaspberryPi: connecting it on the corner of the long pins rows (GPIO connectors).
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1. Insert a Kiwix plug image into the Pi and start it.
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1. Insert a Kiwix plug image into the Pi and start it.
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1. Connect to it via WiFi or Ethernet and access http://time.kiwix-plug.lan, replacing `kiwix-plug` by the name of your image.
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1. Connect to it via WiFi or Ethernet and access http://time.kiwix-plug.lan, replacing `kiwix-plug` with the name of your image.
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1. Follow the instructions: if both time (System and Hardware) are OK, then you're good to go. If not, choose either Online or Offline mode depending on whether your Pi is connected to Internet or not.
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1. Follow the instructions: if both time (System and Hardware) are OK, then you're good to go. If not, choose either Online or Offline mode depending on whether your Pi is connected to Internet or not.
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![clock](/uploads/2c8075319cbc4094474ed3ed8b5dd989/clock.png)
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**Note:** You can configure a clock on a Pi and install it on another Pi later. Configuration is just a matter of saving a reference time in the module. |
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**Note:** You can configure a clock on a Pi and install it on another Pi later. Configuration is just a matter of saving a reference time in the module. |