businessbeginneruniversal
Guten Tag.
/ˈɡuːtn̩ taːk/
Good day. (formal hello)
When to use it
The default formal hello — emails, shops, meetings. Switching to first names and 'du' is a real moment in German workplaces.
In conversation
—Guten Tag, mein Name ist Müller, ich habe einen Termin.
“—Good day, my name is Müller, I have an appointment.”