In your employee profile, all your data converge.
In the tab "General" different data will be saved depending on the settings of the admin. By default, your contact data as well as the settings for language and time zone are stored there.

To get to your profile, proceed as follows:
Click on the gear icon (Settings) at the bottom left → now click on your name or on "My Profile" 

Here you can see all your stored data.
The view of the "General" tab can vary depending on the settings in your company.
If you use the employee check-in, you will find all the data you have entered here.

The data are divided into different topics. With a click on the pen and paper symbol next to the headings you can edit the corresponding data.