How to change time on macbook. You will probably have to unlock the lock at the bottom of the screen and enter your mac password to make changes. This will toggle between 24 hour time and 12 hour time. Click your approximate location on the world map to choose a time zone or click the closest city pop up menu and choose the city thats closest to you and shares your same time zone.
Alternatively select the set time zone automatically using current location check box a real convenience for macbook owners who are constantly traveling. Click the sleep menu to switch to shut down or restart click the every day menu to select which days you want this to occur. Allow your device to use its current location to determine the correct time zone.
Select the clock face and drag the clock hands or select the up and down arrows next to the time field above the clock to change the time. To do this go to settings privacy location services system services and select setting time zone. In the time zone pane make sure that set time zone automatically using current location is selected and your mac is connected to the internet.
Click the time format box. Check that your device shows the correct time zone in settings general date time time zone. This will allow you to set a time that your computer will put itself to sleep or shut down on specified days.
In the date time tab clear the check box next to the set date and time automatically. Set system date in mac os x from command line with a central time server.