Questions & Answers about Ik heb haast, want het is al laat.
Why is al used here instead of just saying het is laat?
Adding al (already) emphasizes that it is later than expected or desired. It adds a sense of urgency to the reason why you are in a hurry.
Why does the sentence use heb haast instead of a literal translation for "I am in a hurry"?
Why is the word order normal after want? Shouldn't the verb go to the end of the sentence?
Want (because) connects two main clauses, meaning it simply links two normal sentences together without changing their word order. If you used omdat (which also means because), the verb would move to the end: ...omdat het al laat is.
Could I use nog instead of al in this sentence?
If you said het is nog laat, it would mean "it is still late," which does not make logical sense when explaining why you are rushing. You want to express that time has caught up with you, so al (already) is the correct choice here.