Change the language or regional formats used on iCloud.com
You can change the language and regional format settings (dates, times, numbers, and currencies) used on iCloud.com.
Note: Changing these settings only affects iCloud.com. It doesn’t affect settings for other websites, your web browser, or other apps on your device.
Change the language
On iCloud.com, go to Account Settings, tap the current language, then choose a new language.
Change the date and other regional formats
You can change the regional formatting used to display dates, times, numbers, and currencies on iCloud.com so it’s 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, dates in certain iCloud features appear in the format for Spain.
On iCloud.com, go to Account Settings, tap the current region below Formats, then choose a new region.