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 The 3DS uses the 24-hour time format to display the time on the HOME menu among other applets. This guide shows you how to convert the 3DS system's clock on the HUD of the Home Menu to a 12-hour format. This will not affect other applets such as System Settings or the Nintendo eShop at the moment.
-{{Page WIP|notes=Apparently, writing guides takes a long time. Use [https://discord.com/channels/196618637950451712/261581918653513729/1180342227218739300 this link to the guide on Discord] for now, until I finish this.}}
+'''This guide is based heavily on a custom HOME menu guide by Dungeonfire available''' [https://axities.github.io/ here]'''.'''
+{{Warning|text=Create/update your NAND backup! When making changes to your device, there is always the chance you will brick.}}{{Warning|text=Having a custom Home Menu installed breaks system updates. If you want to update your system, you will have to restore your Home Menu with a blank <code>HomeMenu.cia</code> first.}}
+==What You Need==
+*The latest version of [https://mega.nz/#!BhkWnI6a!QA_2cVB9kQKGpQnUlbJ7Llnn4Nm8nu5ucr5Gx_jXh4k Home Menu Rebuilding Tool] by DeKay
+*The latest version of [https://github.com/IcySon55/3DLandMSBTeditor/releases MSBT Editor Reloaded]
+*The latest version of [[3DS:GodMode9/Usage#Updating GodMode9|GodMode9]]
+*Windows - required for this guide currently, may not be in the future
+==Section I - Preparations==
+#Extract Home Menu Rebuilding Tool as well as MSBT Editor Reloaded to a new folder on your computer.
+#Press and hold {{Key press|Start}}, and while holding {{Key press|Start}}, power on your console. This will launch GodMode9
+#Press {{Key press|HOME}} to bring up the action menu
+#Select "Title manager"
+#Select "[1:] NAND / TWL"
+#Scroll down through the list and select a title labeled <code>(CTR-N-HMME)</code>. This is the Home Menu application.
+#Select "Manage Title..."
+#Select "Build CIA (standard)"
+#Push {{Key press|A}} once it is finished
+#Push {{Key press|R|Start}}  to power off the console.
+#Insert the SD Card into your computer.
+#Backup the <code>.cia</code> file in the <code>gm9/out</code> folder to a safe place on your computer. It ends with <code>(CTR-N-HMME).standard.cia</code>.
+#Make another copy of this <code>.cia</code> file in the folder created in step 1.
+#Rename it to <code>HomeMenu.cia</code>
+==Section II - Modifying==
+#Open <code>Home Menu Rebuilding Tool.bat</code>
+#Push {{Key press|8}} on your keyboard
+#Wait for it to finish, do not push any buttons. It should open a folder named ExtractedRomFS in a new window.
+#Keep the window open and open <code>MsbtEditor.exe</code>
+#Drag the file named <code>hud_msbt.LZ</code> from <code>ExtractedRomFS/message_hud/US_English</code> into MsbtEditor
+#Scroll down and select <code>lau_hours</code> in the list on the left
+#Change <code>%H</code> to <code>%h</code> in the first text box labeled "Edit:"
+#Push {{B|Ctrl|S}} to save, then close MsbtEditor.
+#Go back to Home Menu Rebuilding Tool (the window you were instructed not to close) and push any key
+#*If you accidentally closed it, reopen it, then push {{B|6}} then {{B|2}} then {{B|3}}
+== Section III - Installing ==
+# Copy the outputted <code>HomeMenu_edited.cia</code> file to the root of the SD card
+# Press and hold {{Key press|Start}}, and while holding {{Key press|Start}}, power on your console. This will launch GodMode9
+# Navigate to the <code>[0:] SDCARD</code> drive, then select the <code>HomeMenu_edited.cia</code> file
+# Select "CIA Image options..."
+# Select "Encrypt file (...)"
+# Select "Encrypt inplace"
+# After it is finished, push {{Key press|A}} to continue
+# Select the <code>HomeMenu_edited.cia</code> file again
+# Select "CIA Image options..."
+# Select "Install game image"
+# Press {{Key press|A}} to unlock SysNAND (lvl1) writing, then input the key combo given
+# Push {{Key press|A}} twice then {{Key press|Start}} to reboot.
+If all has gone well, you should now see a 12-hour clock on the HUD of the HOME menu. If the HOME menu does not boot or you encounter any other problem, it is recommended that you ask for help on the [https://discord.gg/nintendohomebrew Nintendo Homebrew Discord server] in one of the 3DS assistance channels. You could also ping me, the person who wrote this guide (Username: _themaniac on Discord), there and I will assist you if possible.