heut
today
A colloquial or poetic shortened form of the word 'heute' (today).
Was hast du heut Abend vor?
What are you doing this evening?

today
Loading your saved state.
today
A colloquial or poetic shortened form of the word 'heute' (today).
Was hast du heut Abend vor?
What are you doing this evening?

'Heut' is a very common shortened form of 'heute' (today) in spoken language and informal writing (e.g., in chats). In formal texts such as job applications or official emails, you should always write 'heute'.
Ich hab heut leider keine Zeit.
Unfortunately, I don't have time today.
Just like 'heute' (today), 'heut' is often combined with times of day. Typical combinations are 'heut Morgen' (this morning), 'heut Nachmittag' (this afternoon), and 'heut Abend' (this evening).
Kommst du heut Abend mit ins Kino?
Are you coming to the movies with us this evening?
'Heut' can stand at the beginning of a sentence (position 1) or inside the sentence, just like 'heute' (today). If it stands at the beginning, the conjugated verb follows directly.
Heut scheint die Sonne den ganzen Tag.
Today the sun is shining all day.
now
'jetzt' and 'heut' both have to do with the present, but they do not mean the same thing. 'jetzt' refers to the current moment or to the present day in contrast to the past. 'heut' is a shortened form of 'heute' and means the whole day, not just this moment. Also, 'heut' sounds colloquial or poetic; in neutral German, people usually say 'heute'. Learners may confuse the words because both can appear in sentences about the present. Memory tip: 'jetzt' means the moment, 'heut' means the day.

Heut treffe ich meine Freunde nach der Schule.
Today I'm meeting my friends after school.
Nach der Nachricht ist meine Mutter jetzt sehr nervös.
After the news, my mother is now very nervous.