The date is treated in a similar way in English and in German.
| Der wievielte ist heute? | What is today’s date? |
| Heute is der dritte Februar. | Today is the 3rd of February. |
NB: You omit the idea of 'of' before the month in German in a date.
Here’s an example of how to say your birthday in German:
'Ich habe am zwanzigsten Mai Geburtstag.' - 'My birthday is (on) the 20th of May.'