The time on the lock screen displays the system time in a 12 hour clock format by default. If you like, you can have the lock screen time display in a 24 hour clock format (aka: Military Time). If you have more than one display, the lock screen will only show on the main display.
Enter the command as it's written below to change the screen timeout when the computer is plugged in. Edit 60 to whatever you want the time to be, in seconds: powercfg -change -monitor-timeout-ac 60. A similar command is used for when the computer is on battery power: powercfg -change -monitor-timeout-dc 60. This command works in Command Prompt
In the Screen Time dashboard, tap App Limits > Add Limit and then select a category. Then tap Add to pick the time limit you want. When you've spent a certain amount of time in apps that fit the category, you'll get a notification that you're near your daily limit. Once you've hit the limit, you'll see the "Time Limit Reached" screen instead of
Scroll down and tap General . In the General menu, tap Date & Time . If Set Automatically is turned off, tap the toggle to turn it on. It will cause your phone to automatically update the date and time using a cellular or Wi-Fi connection to determine your location's current date and time. If Set Automatically is turned on, toggle it off and on
Screen Time on macOS Catalina will track them all as being used. If you kept Finder open in the background for 6 hours, it'll say that you used Finder for 6 hours straight. You probably didn't, but Screen Time will think you did. There are other problems with Screen Time that just make the problem trickier, too.
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screen time showing 24 hours
