På den ene siden tid; på den andre siden penger.

Not really. It is an elliptical expression, meaning some words are left out because they are understood from context.

A fuller version could be something like:

På den ene siden er det tid; på den andre siden er det penger.

or

På den ene siden har du tid; på den andre siden har du penger.

In Norwegian, this kind of shortened structure is common in headings, notes, and contrastive, rhetorical writing.

It sets up a contrast between two sides of an issue, just like English on the one hand ... on the other hand ...

So this pattern is not just about physical sides. Very often it introduces two contrasting considerations, arguments, or values.

It is a very common fixed expression in Norwegian.

Because Norwegian normally uses a definite determiner before an adjective + noun phrase.

So you get:

• den ene siden
• den andre siden

This is the usual pattern in Bokmål:

• den store bilen = the big car
• det gamle huset = the old house

So den is there because the phrase is definite: the one side / the other side.

This is a normal feature of Norwegian often called double definiteness.

With a definite noun that has an adjective, Norwegian typically marks definiteness twice:

• with the article/determiner: den
• and on the noun itself: side → siden

So:

• den ene siden
• den andre siden

This is different from English, which only uses the.

Here ene is the form used in the fixed contrast pair:

• den ene = the one
• den andre = the other

So ene is not just the simple number one. In this structure, it works as part of the pair one / the other.

You will often see:

• den ene ... den andre
• det ene ... det andre
• de ene ... de andre

depending on gender and number.

Because the base noun is en side = a side.

Its definite singular form is:

• side → siden

So:

• på den ene siden
• på den andre siden

Literally, this is on the one side / on the other side, but in practice it often means on the one hand / on the other hand.

Because Norwegian often uses bare nouns when talking about things in a general or abstract way.

Here:

• tid = time
• penger = money

No article is needed because the words are being presented as general categories or considerations, not as specific individual items.

Compare:

• Jeg har tid. = I have time.
• Jeg har penger. = I have money.

You would only add a definite article if you meant specific time or specific money already known from the context.

Because Norwegian normally uses penger, which is grammatically plural, where English uses the mass noun money.

So:

• Jeg har penger. = I have money.

Even though English treats money as singular/uncountable, Norwegian usually uses penger.

That is completely normal and very common.

The semicolon helps separate two parallel contrasting fragments.

It gives the sentence a balanced, rhetorical feel:

• På den ene siden tid; på den andre siden penger.

A writer could also choose a comma, dash, or rewrite it as a full sentence, but the semicolon works well because the two parts mirror each other closely.

Yes. It can be literal or idiomatic depending on context.

Literal:

• På den ene siden av huset er det en hage.
  = On one side of the house there is a garden.

Idiomatic:

• På den ene siden er det billig, men på den andre siden er kvaliteten dårlig.
  = On the one hand it is cheap, but on the other hand the quality is poor.

In your sentence, it is most likely the idiomatic contrastive use.

If på den ene siden comes first in a main clause, normal Norwegian word order gives you verb in second position.

For example:

• På den ene siden har du tid.
• På den andre siden har du penger.

Notice that after the fronted phrase på den ene siden, the verb har comes before the subject du.

That is standard Norwegian main-clause word order.