12

By default, screenshot files are saved with names like this:

Screen Shot 2016-07-12 at 1.07.34 PM.png

The date format is great, but the time format annoys me because it doesn't sort automatically. Is there any way to change the format to:

Screen Shot 2016-07-12 at 13.07.34.png

11

It's using the system's standard date/time display format which you can customise in the 'Formats' tab in System Preferences → Language&Text

Or, it might be quicker to just change the time display of the clock to 24-hours mode: System Preferences → Date & Time

(I have OS X 10.7.5, so it may be organised/worded slightly differently in newer OS X versions.)

  • 1
    System Preferences → Date & Time , click Open Language & Region..., check 24-Hour Time. Screenshot was saved in 24-hours format. Thanks. – kangbu Aug 3 '18 at 8:02
4

I've found the most minimal solution (on macOS 10.14.3) to be:

System PreferencesLanguage & Region, then click Advanced..., choose the Times tab and for the Medium format click the hour dropdown and switch it from 1-12 to 00-23 and delete the AM/PM element:

Language & Region Advanced Times Screenshot

  • 1
    This is the best answer, because it still allows you to keep other displays of time using the 12-hour format. – supergra Jul 1 '20 at 20:07
  • I just want to add my +1 as well, this is the best answer. Simple, doesn't change your clock, just the formatting of the screenshot filename. Worked wonders, stopped confusing me when looking up screenshots. Works for 10.15.6 Catalina, Aug 12, 2020 – bafromca Aug 12 '20 at 23:59
0

Thanks for the tip on changing the time format.

I asked in the Apple forum how to change the text because it used to start with "Screenshot" - https://discussions.apple.com/thread/251714867

The answer is:

defaults write com.apple.screencapture name "Screenshot"
killall SystemUIServer

So now the format looks like "Screenshot 2020-08-22 at 10.18.35.png" - almost back to where I want it.

I haven't worked out how to remove "at" between date and time though.... yet :) 

For more information and some background, see my blog post.

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