Breakdown of Ich habe im Februar Geburtstag.
ich
I
Geburtstag haben
to have a birthday (on a date)
der Februar
February
im
in the (used with months) / in the (contraction of in + dem)
Questions & Answers about Ich habe im Februar Geburtstag.
Why do we say im Februar instead of just in Februar?
All months in German are masculine nouns. To say "in" a month, German uses the preposition in followed by the dative case. The word in merges with the dative masculine article dem to become im. You will use im for every month of the year, like im Januar or im Mai.
Why is im Februar placed in the middle of the sentence instead of at the end?
In German, time information usually comes earlier in the sentence than it does in English. The standard word order puts the "when" (im Februar) before the direct object (Geburtstag).
The English translation says "I have my birthday", but there is no word for "my" in the German sentence. Why?
In German, the common phrase is simply Geburtstag haben (literally: "to have birthday"). You don't need to use a possessive word like meinen (my) or an article like einen (a) in this everyday expression.