User:ManiacOfHomebrew/3DS 12-hour Clock

Required Reading
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.

What You Need

 * The latest version of Home Menu Rebuilding Tool
 * To download, click the green code button, and then Download ZIP.
 * The latest version of MSBT Editor Reloaded
 * The latest version of GodMode9 installed
 * A Windows Computer, or Wine for Mac/Linux (Required to run MSBT Editor)

Section I: Prep Work

 * 1) Extract Home Menu Rebuilding Tool as well as MSBT Editor Reloaded to a new folder on your computer
 * 2) Press and hold Start, and while holding Start, power on your console. This will launch GodMode9
 * 3) Press HOME to bring up the action menu
 * 4) Select "Title manager"
 * 5) Select "[1:] NAND / TWL"
 * 6) Scroll down through the list and select a title labeled . This is the Home Menu application
 * 7) Select "Manage Title..."
 * 8) Select "Build CIA (standard)"
 * 9) Push A once it is finished
 * 10) Push R to power off the console
 * 11) Insert the SD Card into your computer
 * 12) Backup the  file in the   folder to a safe place on your computer. It ends with
 * 13) Make another copy of this  file in the folder created in step 1
 * 14) Rename it to
 * 15) Copy  to the Home Menu Rebuilding Tool folder

Section II - Modifying

 * Open
 * Push 1 on your keyboard to extract the components of the Home Menu
 * Push 5 on your keyboard to decompress the components
 * Keep the window open and open
 * Drag the file named  from   into MsbtEditor
 * Scroll down and select  in the list on the left
 * Change  to   in the first text box labeled "Edit:"
 * Push to save, then close MsbtEditor

Section III - Installing

 * -|Luma LayeredFS (Recommended)=

Create the  folder inside the   folder. Copy  from   to the new folder. Eject your SD Card and put it back in the console. Start your device and hold SELECT to enter the Luma3DS configuration screen Press (A) on  to tick it (if it is not already ticked)   Press  to boot the the home menu  Your Home Menu should now display 12-hour time.
 * 1) In the Home Menu Rebuilding Tool window, push 6 on your keyboard to recompress the components
 * 2) Close the Home Menu Rebuilding Tool window.
 * 3) On your 3ds SD Card, create the following folder corresponding to your region:
 * JPN:
 * USA:
 * EUR:
 * CHN:
 * KOR:
 * TWN:


 * -|Patched CIA=


 * 1) In the Home Menu Rebuilding Tool window, push 6 on your keyboard to recompress the components
 * 2) In the Home Menu Rebuilding Tool window, push 2 on your keyboard to rebuild the HomeMenu CIA.
 * 3) Copy the outputted   file to the root of the SD card
 * 4) Press and hold Start, and while holding Start, power on your console. This will launch GodMode9
 * 5) Navigate to the   drive, then select the   file
 * 6) Select "CIA Image options..."
 * 7) Select "Encrypt file (...)"
 * 8) Select "Encrypt inplace"
 * 9) After it is finished, push A to continue
 * 10) Select the   file again
 * 11) Select "CIA Image options..."
 * 12) Select "Install game image"
 * 13) Press A to unlock SysNAND (lvl1) writing, then input the key combo given
 * 14) Push A twice then Start to reboot

Your Home Menu should now display 12-hour time.