Bindingstiden er seks måneder.

It is a compound noun:

• binding = binding / obligation / tie-in
• tid = time
• bindingstid = binding period, tie-in period, minimum contract period

Then -en is added to make it definite:

• bindingstid = a binding period
• bindingstiden = the binding period

So bindingstiden means the binding period or the minimum contract term.

Because Norwegian often adds the definite article to the end of the noun instead of using a separate word like the.

For masculine nouns in Bokmål:

• en tid = a time / a period
• tiden = the time / the period

Since bindingstid is treated as a masculine noun, the definite singular form is:

• bindingstiden = the binding period

This is one of the biggest differences from English.

Because the sentence is identifying what the binding period is.

• Bindingstiden er seks måneder. = The binding period is six months.

Here, er works like English is. It links the subject (bindingstiden) with the description/measure (seks måneder).

Using har would mean has, which would sound unnatural here.

Because seks måneder is an indefinite quantity expression, just like in English:

• six months
• not the six months

After a number, Norwegian normally uses:

• seks måneder = six months
• to dager = two days
• fem år = five years

So nothing extra is needed before seks måneder.

Because the number is greater than one, so Norwegian uses the plural form.

The forms are:

• en måned = a month
• måneden = the month
• måneder = months
• månedene = the months

So:

• én måned = one month
• seks måneder = six months

This works very much like English.

Yes, it is a common word in practical contexts like:

• phone contracts
• internet subscriptions
• gym memberships
• rental or service agreements

It usually means a period during which you are committed to the contract and cannot leave freely without consequences.

A related word you may also see is oppsigelsestid, which means notice period. These are not the same:

• bindingstid = minimum time you are tied to the contract
• oppsigelsestid = how much notice you must give before ending it

Yes. That is a very common alternative.

Compare:

• Bindingstiden er seks måneder.
• Det er seks måneders bindingstid.

Both are natural, but the structure is different.

In Det er seks måneders bindingstid, seks måneders functions like six months’ in English, modifying bindingstid.

That is why you get måneders there, but not in:

• Bindingstiden er seks måneder.

So:

• er seks måneder = is six months
• seks måneders bindingstid = a six-month binding period

Because the grammar is different.

In:

• Bindingstiden er seks måneder

seks måneder is the predicate expression: it tells you the length.

In:

• seks måneders bindingstid

seks måneders describes the noun bindingstid, similar to English a six-month binding period or six months’ binding period.

So the -s appears when the time expression is used attributively before another noun.

A rough pronunciation guide for an English speaker could be:

• Bindingstiden ≈ BIN-ding-stee-den
• er ≈ air / a very short ehr
• seks = almost like English sex, but with a clearer k+s
• måneder ≈ MOH-neh-der

A rough full version:

• BIN-ding-stee-den ehr seks MOH-neh-der

A few notes:

• å in måneder is a rounded vowel, somewhat like the vowel in British law, but not exactly.
• The r in Norwegian is usually lighter than in many English accents.
• Norwegian sentence melody matters a lot, so listening to native audio is especially helpful.

Yes, this is standard Bokmål.

In Nynorsk, you would more likely see:

• Bindingstida er seks månader.

Main differences there:

• bindingstiden → bindingstida
• måneder → månadar or månader depending on form and style, though månader is standard Nynorsk

If you are learning Bokmål, the original sentence is exactly what you should focus on.

Yes, but the original order is the most straightforward.

Standard statement:

• Bindingstiden er seks måneder.

You could also front another element in a larger sentence, but then Norwegian follows the V2 rule: the verb usually stays in second position.

For example:

• For denne avtalen er bindingstiden seks måneder.

That means something like:

• For this agreement, the binding period is six months.

So the basic sentence is simple, but Norwegian word order becomes important when you add more information.

Yes, absolutely, especially in customer service, contracts, and subscription contexts.

You might also hear close alternatives like:

• Det er seks måneders bindingstid.
• Abonnementet har seks måneders bindingstid.
• Du binder deg i seks måneder.

They all refer to the same general idea, but with slightly different focus:

• Bindingstiden er seks måneder. → focuses on the length of the binding period
• Abonnementet har seks måneders bindingstid. → focuses on the subscription
• Du binder deg i seks måneder. → focuses on the person being tied in for six months

A useful mini-paradigm is:

For bindingstid:

• en bindingstid = a binding period
• bindingstiden = the binding period
• bindingstider = binding periods
• bindingstidene = the binding periods

For måned:

• en måned = a month
• måneden = the month
• måneder = months
• månedene = the months

Learning nouns with their article and a couple of forms is very helpful in Norwegian, because definiteness is built into the noun itself.