iCloud
Change date and other regional formats used on iCloud.com
You can change the regional formatting used to display dates, times, numbers, and currencies on iCloud.com that are different from the language used throughout iCloud.com.
For example, if the language for iCloud.com is set to English, but the regional formatting is set to Spain, then dates in certain iCloud features appear in the format for Spain.
In Settings on iCloud.com, tap the current region below Formats, then choose a new region.