如何修改Photos应用中「时刻」的默认日期格式？

Great question—this is a super common frustration for folks who’ve stuck with Photos through multiple versions, especially when old library data doesn’t play nice with new defaults! Let’s break this down into two parts: updating your existing Moments to a new date format, and setting the default format for future imports.

Photos doesn’t have a built-in bulk edit tool for Moment titles, but you have two reliable options:

Option 1: Use AppleScript (Customizable, Precise) #

This lets you define exactly the date format you want and apply it to every Moment in your library. Here’s how:

1. Open the Script Editor app (found in Applications > Utilities).
2. Paste this script, then tweak the date format string to match your preferred style:

tell application "Photos"
    set allMoments to every moment
    repeat with aMoment in allMoments
        set momentStartDate to start date of aMoment
        -- Replace the format string below with your desired pattern:
        -- Examples: 
        -- '%Y-%m-%d' = 2024-10-05
        -- '%B %d, %Y' = October 05, 2024
        -- '%Y年%m月%d日' = 2024年10月05日
        set newMomentTitle to do shell script "date -j -f '%Y-%m-%d' '" & (date string of momentStartDate) & "' +'%B %d, %Y'"
        set name of aMoment to newMomentTitle
    end repeat
end tell

3. Before running, go to System Settings > Privacy & Security > Files and Folders and make sure Script Editor has permission to access Photos.
4. Click the run button (▶️) in Script Editor. Wait for it to finish—this might take a minute if you have a large library.

Pro tip: Back up your Photos library first (right-click the library in Finder > Duplicate) just in case something goes sideways.

Option 2: Tweak System Region Settings (Quick, But Global) #

If you want all Moments to match your system’s default date format, you can update your region settings, then force Photos to refresh:

1. Open System Settings > General > Language & Region.
2. Click Date Format > Customize and adjust the Short Date format to your preference.
3. Quit and re-open Photos. Some older Moments might update automatically, but this isn’t guaranteed for all legacy data—you might still need the AppleScript for full coverage.

For any new photos/videos you import going forward, Photos uses your system’s Short Date format by default. To lock this in:

• Follow the same steps above for System Settings > General > Language & Region > Date Format > Customize.
• Set your preferred Short Date format, and all future Moments will automatically use this style. No extra steps needed!

Note: Changing the system date format will affect other apps (like Calendar, Mail, etc.) that pull date display settings from your system. If you only want Photos to use a specific format, stick with the AppleScript method for existing Moments and leave system settings as-is.

内容的提问来源于stack exchange，提问作者Ramy