For Web Hosting customers with a 1&1 IONOS email address
With the language option you can change 1&1 IONOS WebMail to your preferred language. By selecting the time zone, you can adjust the date and time specifications to the respective local time, regardless of the country you are currently in.
Log in to 1&1 IONOS WebMail.
Click the menu icon (System Menu) and then click Edit Settings.
Click on Basic settings and select the desired language and time zone. The settings are automatically taken over and are active after a renewed login.