Aquest any he penjat un calendari nou a la cuina, i al gener ja hi he escrit una data important.

No. In Catalan, any means year.

So aquest any = this year.

This is a very common false friend for English speakers. English any is usually qualsevol, cap, or another word depending on context.

No. Here data means date.

So una data important = an important date.

Another false friend:

• Catalan data = English date
• English data = Catalan dades

They are forms of the present perfect in Catalan.

Catalan builds this tense with:

• present tense of haver
• past participle

So:

• he penjat = I have hung / I’ve put up
• he escrit = I have written / I’ve written

Here:

• he = I have
• penjat = past participle of penjar
• escrit = past participle of escriure

A useful detail: escrit is irregular, so you just have to learn it.

Because aquest any means this year, and this year is a time period that is still ongoing.

In Catalan, the present perfect is very natural with:

• avui = today
• aquesta setmana = this week
• aquest mes = this month
• aquest any = this year

That is similar to English, where you also often say This year I’ve...

So:

• Aquest any he penjat... sounds very natural.
• Aquest any vaig penjar... is less neutral in many contexts, though dialect and style can affect this.

Here penjar means to hang up or to put up.

So he penjat un calendari nou a la cuina means:

• I’ve hung up a new calendar in the kitchen

It is a very normal verb for things like:

• calendars
• pictures
• posters
• coats

In other contexts, penjar can also mean things like to upload or to post online, but not here.

Both are possible, but they can suggest slightly different things.

• un calendari nou usually means a new calendar as opposed to an old one
• un nou calendari often suggests another/new replacement calendar

So in this sentence, un calendari nou is very natural if the idea is simply that the calendar is new.

More generally, adjectives in Catalan often come after the noun:

• calendari nou
• data important

But some adjectives can also go before the noun for style or nuance.

In Catalan, a is often used where English would use in, at, or to, depending on context.

So a la cuina here means in the kitchen.

With a verb like penjar in this sentence, it clearly indicates location:

• he penjat un calendari nou a la cuina = I’ve hung a new calendar in the kitchen

Also:

• a + la stays a la
• there is no contraction here

Catalan can sometimes use en for location too, but a la cuina is completely normal.

Al is a contraction of a + el.

So:

• al gener = a el gener

In normal Catalan, that becomes al gener.

As for meaning, it usually means in January. In this calendar sentence, it can also feel like in/on the January part of the calendar.

So the form is:

• a + el + gener → al gener

Hi is a weak pronoun. Here it means something like there or on it.

In this sentence, it replaces the place where the date is written — basically the calendar, or the relevant part of it.

So:

• ja hi he escrit una data important

means roughly:

• I’ve already written an important date there
• I’ve already written an important date on it

Without hi, you would have to repeat the place more explicitly.

Because weak pronouns normally go before the conjugated verb.

In a compound tense, the conjugated verb is the auxiliary, here he.

So:

• hi he escrit = correct

Not:

• he hi escrit

A useful rule:

• before a conjugated verb: hi he escrit
• attached after an infinitive: escriure-hi
• attached after an affirmative imperative: escriu-hi

Ja means already here.

So:

• ja hi he escrit una data important = I’ve already written an important date on it

It gives the idea that this has happened by now, perhaps earlier than expected or simply before the present moment.

It is a very common word in Catalan, and its exact translation can vary by context, but already is the right meaning here.