In the top menu you will find a calendar icon in the upper left corner. When you click on this icon, a box will appear with information about the upcoming birthdays of the company's employees.
In the bottom of this list you will see three dots. You can click these dots and you will see a full overview over all employees in the company and how long until each of their birthdays.
This function can also be deactivated in the systems settings, read more about this in our section "Settings".