Select the 12-hour format time from the drop-down menu under “ Short time“.On the right-panel, scroll down and click on the “ Change Date Formats” link.Press Win + I to open the Settings app.All you have to do is select the 12-hour time format from a drop-down menu and you are good to go. The Settings app makes it quite easy to change the time format in Windows 10. Without further ado, let me show you how to change 24-hour clock to 12-hour clock in Windows 10. For instance, you can show the 12-hour clock on the taskbar and a 24-hour clock in the calendar flyout menu. Since Windows treats them as two separate entities, you can configure them separately. The “long time” appears in the calendar flyout that appears when you click on the taskbar clock. The “short time” appears on the taskbar to the bottom right corner. Before proceeding, you should know that Windows uses two different formats called “Short time” and “Long time” to show the time.