Jamen, afgangstidspunktet er sent.

Jamen is a very common Danish discourse word, especially in speech. It often expresses something like:

• well
• but
• yes, but
• come on

It does not usually have a neat word-for-word English equivalent. In this sentence, it adds a tone of mild objection, explanation, or insistence.

So Jamen, afgangstidspunktet er sent sounds more like:

• Well, the departure time is late.
• But the departure time is late.

It is more conversational than plain Afgangstidspunktet er sent.

Because Danish, like German, very often makes compound nouns by joining nouns together into a single word.

Here you can break it down as:

• afgang = departure
• tidspunkt = point in time / time
• -et = the for a neuter noun

So:

• afgangstidspunkt = departure time / departure point in time
• afgangstidspunktet = the departure time

This is completely normal in Danish. English often writes these as separate words, but Danish usually joins them.

The ending -et is the definite article for a neuter noun in Danish.

Compare:

• et tidspunkt = a point in time / a time
• tidspunktet = the point in time / the time

Since the main part of the compound is tidspunkt, the whole compound behaves like a neuter noun:

• et afgangstidspunkt
• afgangstidspunktet

So instead of putting a separate word before the noun, Danish often adds the definite article to the end.

In Danish compounds, the last part determines the grammatical gender of the whole word.

Here the last part is tidspunkt, and that noun is:

• et tidspunkt → neuter

So the full compound is also neuter:

• et afgangstidspunkt
• afgangstidspunktet

This is a very useful rule for compounds in Danish.

Er is the present tense of at være = to be.

So:

• jeg er = I am
• du er = you are
• han/hun er = he/she is
• det er = it is
• de er = they are

Unlike English, Danish does not change the present tense form depending on the subject. It is always er in the present.

Because sent is the neuter form of the adjective sen = late.

The adjective changes depending on the noun it refers to:

• en sen afgang = a late departure
• et sent tidspunkt = a late time
• sene afgange = late departures

In this sentence, the subject is afgangstidspunktet, and that noun is neuter because of tidspunkt. So the adjective must match:

• Afgangstidspunktet er sent.

This is a predicative adjective (after er), but in Danish it still agrees in gender/number in many cases.

Here it is best understood as an adjective agreeing with the noun afgangstidspunktet.

That is why it appears in the neuter form sent.

Compare:

• Han kommer sent. = He arrives late.
  Here sent functions adverbially.

• Tidspunktet er sent. = The time is late.
  Here sent is describing the noun and agrees with the neuter noun tidspunkt.

So the form is the same, but the grammar is different depending on the sentence.

Yes. The basic clause is:

• afgangstidspunktet = subject
• er = verb
• sent = complement

So the normal order is:

• Afgangstidspunktet er sent.

Adding jamen at the front does not change that basic structure. It is more like an introductory discourse marker.

So:

• Jamen, afgangstidspunktet er sent.

is still a normal main clause.

Because jamen is being used as an introductory discourse word or interjection-like element.

In writing, Danish often separates such words with a comma:

• Jamen, det går jo ikke.
• Nå, så tager vi af sted.
• Jo, det kan du godt.

The comma helps show the pause and the conversational tone.

Yes, that is very natural.

In fact, many learners will hear afgangstid more often in everyday use than afgangstidspunkt.

Compare:

• Afgangstiden er sen. = The departure time is late.
• Afgangstidspunktet er sent. = The departure time / departure point in time is late.

The version with tidspunkt can sound a bit more precise or formal, because tidspunkt means a specific point in time. The version with afgangstid is often simpler and more idiomatic in everyday speech.

Also notice the adjective change:

• afgangstiden → common gender → sen
• afgangstidspunktet → neuter → sent

Yes.

• Afgangstidspunktet er sent.
  This is a neutral statement.

• Jamen, afgangstidspunktet er sent.
  This adds feeling: objection, explanation, insistence, or a conversational tone.

So jamen is not necessary for the grammar of the sentence. It affects the tone more than the core meaning.

Yes, especially with jamen.

The sentence sounds quite natural, though afgangstidspunktet is slightly more formal or technical than some everyday alternatives. In conversation, a Dane might also say:

• Jamen, afgangen er jo sent på den.
• Jamen, afgangstiden er sen.
• Jamen, det er et sent afgangstidspunkt.

But the given sentence is perfectly good Danish and useful for learning compounds, article endings, and adjective agreement.