How To Change Windows 8.1 Time And Date Format Posted on by Webmaster IT Support Forum › Forums › Windows › Windows 8 › General Discussion › How To Change Windows 8.1 Time And Date Format Tagged: Date and Time This topic contains 0 replies, has 1 voice, and was last updated by Webmaster 4 years, 6 months ago. Author Posts August 24, 2014 at 2:37 pm #713 WebmasterKeymaster By default, Windows 8.1 chooses US time and date formats, you can change this to display the day first, then the month. To change the time and date format in Windows 8.1: Click the clock in the bottom right corner Click Change date and time settings… On the Date and Time tab, click the Change date and time… button Click Change calendar settings Change the short date to dd/MM/yyyy so the day is first, then the month shows Change any other date or time formats that you wish here. This will effect other programs running on Windows 8.1 that read the date time format settings in the operating system. Author Posts You must be logged in to reply to this topic.