Free macOS utility

24-hour screenshot filenames.

Keep taking screenshots the normal Mac way. Screenshot Clock fixes the filenames so review folders stay in order without switching your whole Mac to 24-hour time.

View install command View uninstall command

Terminal command

$curl -fsSL https://tools.kelownafilmstudios.com/macosscreenshot/install.sh | zsh

Open Terminal with Cmd + Space, type Terminal, then press Return. You can also open Applications / Utilities / Terminal.

The dollar sign is visual only. The copied command starts with curl.

Cost: Free
Platform: macOS
Privacy: Runs locally, no uploads

Screenshot Clock product visual showing macOS screenshots sorted with 24-hour filenames.

The problem

AM and PM filenames look small until the folder matters.

Screenshot folders become hard to scan when 11 PM files sort beside 11 AM files. The fix is simple: keep normal screenshots, but make their filenames sort by the real time.

Before and after

Same screenshot habit. Cleaner names.

Before Screen Shot 2026-06-15 at 11.30.12 PM.png

After Screen Shot 2026-06-15 at 23.30.12.png

How it works

A small local setup, not another screenshot app.

Keep the Mac screenshot shortcut. Use the same screenshot keys and the same files.

Choose name, folder, and time mode. Setup asks before it changes screenshot settings.

Recommended mode keeps your clock alone. New screenshots are renamed after capture so filenames sort in 24-hour order.

Floating preview stays on by default. Setup only disables it if you choose that option.

Install

One command. Local setup.

Paste the install command into Terminal. It asks for screenshot name, folder, time mode, and whether to disable the floating preview thumbnail.

Install command

Uninstall command

Command details

Local limits

Small, local, reversible.

Screenshot Clock is designed for people who care about order but do not want another account, cloud service, subscription, or screenshot manager.

No uploads

Everything runs on your Mac.

Plain commands

Install and uninstall use visible Terminal commands.

Rerunnable

Run setup again later to change screenshot name, folder, or mode.

Removable

Uninstall can restore saved managed screenshot settings when available.

Uninstall

Remove it with one command.

The installer saves a first-install restore snapshot before it changes screenshot settings. Uninstall uses that snapshot when it exists, then removes the watcher, local commands, config, command file, and restore snapshot.

After install, you can also run ~/.local/bin/macosscreenshot-uninstall or open ~/Library/Application Support/Kelowna Film Studios/macosscreenshot/Uninstall macOS Screenshot.command.

Install and uninstall notes

$curl -fsSL https://tools.kelownafilmstudios.com/macosscreenshot/uninstall.sh | zsh

If saved restore settings exist, uninstall restores the screenshot name, screenshot folder, floating thumbnail preference, and 24-hour clock override key. If no saved settings exist, it clears only the managed keys so macOS falls back to its defaults.

It records time zone only for reference. It does not change or restore time zones, and it does not delete your screenshots or screenshot folders.