TimeMachineEditor allows a user to choose when backups occur. Its simple interface — a tiny window — gives a powerful set of options for scheduling your Time Machine backups. You can set the. Open the Contacts app and run Time Machine. On the bottom right corner of the screen, you can scroll through the timeline and look at your previous versions of Contacts. Find the latest version prior to upgrading to Big Sur, Catalina or Mojave. The interval can be set between 1 and 12 hours, and the daemon can be set to run additionally at load, which means also at startup and login. You can press a button to run a backup immediately. The status of the scheduler will be displayed. The Apply button affects only the settings interval and run at load, which are part of the launchd daemon.

Description:
In macOS 10.5 Leopard Apple has introduced Time Machine, a very convenient way to make backups. Unfortunately the backup interval is preset constantly to one hour. Apple uses an launchd daemon to control the timing, but changing the interval value in the launchd.plist file has no effect.
TimeMachineScheduler disables the automatic backup function of Time Machine (the big slider) and installs its own launchd daemon. As the daemon is located in the main library, the administrator password is required for all (writing) operations. Except disabling Time Machine no further system files and preferences will be touched by TimeMachineScheduler.
There are (still) some access privileges problems in OS X 10.5 Leopard, if the operation system has been updated, migrated or installed with the archive & install option. TimeMachineScheduler takes care of all files and sets owner, group and the privileges to the proper default value.
You can install and uninstall the daemon as well as only load and unload it to disable making backups temporarily. The interval can be set between 1 and 12 hours, and the daemon can be set to run additionally at load, which means also at startup and login. You can press a button to run a backup immediately. The status of the scheduler will be displayed.
The Apply button affects only the settings interval and run at load, which are part of the launchd daemon. All other settings are applied immediately.
While a backup is running the control elements are disabled and all actions will be written into a log file (/Library/Logs/TimeMachineScheduler.log).
If you want to revert to the original settings of Time Machine, just uninstall the scheduler and enable Time Machine in its Preference Pane.
In version 3 the application is turned into a Preference Pane. A simple installer is added to update older versions, install the Preference Pane or completely remove all components of TimeMachineScheduler.
Version 3.1 is compatible with macOS 10.7 Lion.
Version 3.1.4 is compatible with macOS 10.8 Mountain Lion.

Features:

• Set the interval from 1 to 12 hours.
• Run the backup manually or automatically also at startup, login or when the daemon has been loaded.
• Display the status of the daemon, of the backup volume and if the backup is currently running.
• Automount, an option to mount and unmount the backup volume automatically (see known problems).
• Option to hide the backup volume (to take effect a Finder relaunch is required).
• Option to restrict backups to a defined network connection (WiFi/Ethernet) and over WiFi to a certain SSID.
• Option to skip the backup within a specified time range.

Known issues:
• As TimeMachineScheduler works independent from the Time Machine Preferences, some information might be displayed wrong in the Preference Pane of Time Machine.
• It could happen, that the backup volume cannot be unmounted (using the automount feature). This occurs also, if the application of TimeMachineScheduler is running. However the daemon is not affected.

PowerPC Support for 10.5 Leopard
• The latest version which runs on PPC is 3.0.2. You can download it here

macOS 10.12 Sierra Compatibility:
TimeMachineScheduler 4.0 Beta

Installation:

New features:

• The UI is slightly more clearly arranged. The 'Backup Now' button provides an animation similar to the menu bar animation. The red border indicates the active backup process. For security reasons the Backup Now button is disabled until the backup process exits (approx. 2 min after the backup is completed).
• An additional wake watchdog. When the computer wakes up and the time of the latest backup is earlier than the interval setting, a backup is started.
• An option to run AppleScripts before and after the backup to specify a custom condition and proceed the result (see the descriptions in the pop up views).
• Better disk management. The unique parameters of the backup volume are saved so the validation by mounting shared and local volumes is not needed anymore.
• Multiple SSID (name of wireless networks) values.

• Support for multiple backup volumes added (10.8 and higher).
• The current backup volume in the General view shows the volume corresponding to the Time Machine menu bar item.
• The network condition and automount / invisible parameters can be set separately for each volume.
• Time range and script settings are global.
• The automount checkbox is enabled when the backup volume is available.
• The invisible checkbox is enabled when the backup volume is mounted.
• After changing the visible status the Finder is supposed to be relaunched.
• Like the original behavior of Time Machine the scheduler rotates that means it looks for the next available backup volume considering the custom conditions.

• The TMS beta is not localized yet.

Catalina Time Machine Backup

• 64 bit Mac and macOS 10.7 Lion and higher including macOS 10.12 Sierra. The application is code-signed.

Time Machine Editor Catalina Version

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