How to change the date, time and number format of Windows 7

1. First click on the "Control Panel" and click on "Clock, Language and region". 2. Click on "Change time, date or number format". 3. Select the “Format” tab and select the corresponding drop-down menu in the date and time format to modify the format of the time and date. The modified result can be seen in the example below. If you want to make detailed modifications, you can choose "Other settings" below. 4. Enter the custom format for more detailed modification, such as modifying the "AM" symbol to "AM" and "PM symbol to PM". Then you can see that in the example of the previous format option, "AM, PM" has become "AM, PM". 5. Detailed modification of the corresponding date can also be done in a custom format. Select the "Date" format in the Date tab and select the corresponding drop-down menu to modify it. However, be aware that changes in the custom format will also be applied to the Format tab in the region and language when clicked OK. 6. If you want to modify the number format, you can modify it and save it in the "Number" tab in the custom format. If you want to modify the currency and sorting, or reset the previous changes, select the corresponding tab.