The date and time are set to dd-MM-yyyy format (18-07-2013) and 24 hrs format (21:10) respectively by default after installing Windows 7. Sometimes we may want to customize the default format of date and time. You can change the time format (from 24 hour to 12 hour - AM/PM) or the date format using the simple tips given below. 1. Left Click on the Time and Date located on the right side of the Taskbar. 2. You will get a popup. 3. Click on "Change date and time settings" in the bottom of the popup. 4. Click on "Change date and time" button in the popup. 5. You will get a new popup. 6. Click on "Change Calender Setting" in the new pop up. 458