Banereservationen begynder klokken otte, og spilletiden er en time.

Because Danish normally writes compound nouns as a single word.
So banereservationen is built from:

• bane = court / track / lane / field, depending on context
• reservation = reservation / booking
• -en = the definite ending

English often uses two words, such as court reservation, but Danish usually joins them into one.

The ending -en is the definite article for many Danish nouns, especially common gender nouns.

For example:

• en reservation = a reservation

• reservationen = the reservation

• en tid = a time
• tiden = the time

In compound nouns, the definite ending goes on the whole word, not on the first part. So:

• banereservationen = the court reservation
• spilletiden = the playing time

Yes. Spilletiden is a compound noun too.

It is:

• spilletid = playing time / game time
• spilletiden = the playing time

This is very typical Danish. English might use a phrase like the playing time, but Danish often packs the idea into one noun.

Begynder is the present tense of at begynde = to begin.

So:

• at begynde = to begin
• begynder = begins / is beginning

A useful thing to remember is that Danish present tense often ends in -r, and the verb form does not change for different persons:

• jeg begynder
• du begynder
• han/hun/den begynder

It is the same form throughout.

Klokken otte is the normal Danish way to say at eight o’clock.

After verbs like begynde or starte, Danish often uses the time expression directly:

• Mødet begynder klokken ni = The meeting starts at nine

So in this sentence, begynder klokken otte means begins at eight o’clock.

Because klokken is a fixed expression when telling time.

Literally, it comes from the clock, but in practice it simply means o’clock or introduces a clock time:

• klokken to = two o’clock
• klokken otte = eight o’clock

So even though it looks definite, you should think of it as the standard time-telling expression.

Because time is a common gender noun in Danish, so it takes en:

• en time = an hour
• timen = the hour

Here, en time means one hour or an hour. Danish commonly uses the indefinite form when giving duration:

• en time = an hour
• to timer = two hours

Because the sentence contains two full main clauses:

• Banereservationen begynder klokken otte
• spilletiden er en time

In Danish, it is normal to put a comma between coordinated main clauses, even when they are linked by og.

So the comma helps show that these are two separate statements joined together.

Because og is a coordinating conjunction, and after it the next clause keeps normal main-clause word order.

So you get:

• spilletiden er en time

with subject + verb.

Danish inversion happens when some other element is placed first, for example:

• Klokken otte begynder banereservationen

Here klokken otte comes first, so the verb moves before the subject. But after og, that does not happen automatically.

No. Bane is a flexible word, and its exact English translation depends on context.

It can refer to things like:

• a court
• a track
• a lane
• a field or playing area

So in banereservationen, the best English translation depends on what is being reserved. In a sports context, it often means something like court reservation or court booking.