Prömiyer cuma akşamı.

In Turkish, the 3rd-person present-tense copula is often left unstated.

So:

• Prömiyer cuma akşamı
  literally looks like Premiere Friday evening
• but it means The premiere is on Friday evening

This is very normal Turkish.
A more explicit, more formal version would be Prömiyer cuma akşamıdır, but everyday Turkish usually omits that ending.

Here, akşamı is not the accusative case. It is part of a common Turkish noun-compound pattern.

• cuma = Friday
• akşam = evening
• cuma akşamı = Friday evening

This structure is like saying Friday’s evening, though in natural English we just say Friday evening.

The ending -ı here is the 3rd-person possessive suffix used in compounds.
You see the same pattern in expressions like:

• pazar sabahı = Sunday morning
• yaz tatili = summer vacation
• okul kapısı = school door / the door of the school

So akşamı here is grammatical because of the compound, not because it is an object.

No. It only looks like the accusative ending.

Turkish has several endings that can look similar, and -ı can be:

• accusative in one sentence
• possessive/compound marking in another

In cuma akşamı, it is the compound/possessive ending.
A good test is this: the phrase means a time expression, not a direct object.

So:

• cuma akşamı = Friday evening
  not
• Friday evening as something being acted on

In standard Turkish, days of the week and months are usually not capitalized, unless they begin the sentence or are part of a title.

So this is normal:

• cuma akşamı = Friday evening

Just like:

• pazartesi
• salı
• nisan
• eylül

If the sentence started with it, then it would be capitalized simply because it is the first word:

• Cuma akşamı prömiyer var.

Turkish works differently from English here.

1. There is no definite article like the
   Turkish usually just uses the noun itself: prömiyer.

2. Time expressions usually do not need a preposition like on
   English says on Friday evening, but Turkish just says cuma akşamı.

So the Turkish sentence does not need separate words for either the or on.

Usually akşam means evening, but depending on context it can stretch into what English might sometimes call Friday night.

A rough comparison:

• akşam = evening / early night
• gece = night, especially later at night

So:

• cuma akşamı = Friday evening
• cuma gecesi = Friday night

In many real-life situations, English might translate cuma akşamı as either Friday evening or Friday night, depending on what sounds most natural.

Yes. Prömiyer is a borrowed word used in Turkish, especially for theater, film, TV, and the arts. It means premiere.

It is not a very old native Turkish word; it is a loanword adapted to Turkish spelling and pronunciation.

You may also see more Turkish-based alternatives in some contexts, such as:

• ilk gösterim = first showing / premiere
• galа or gala in some event contexts

But prömiyer is perfectly understandable and natural in the right setting.

A simple approximate pronunciation is:

• prö-mi-YER

A few notes:

• ö is like the vowel in German schön or French peu, not like English o
• the stress is typically near the end: prömiYER

And the whole sentence is roughly:

• prö-mi-YER ju-MA ak-sha-MUH

That last vowel in akşamı is the Turkish ı, which is different from English ee and i. It is a close, unrounded vowel made farther back in the mouth.

Yes. This is a very natural structure.

• Prömiyer = topic / subject
• cuma akşamı = predicate giving the time

So the sentence is basically:

• The premiere — Friday evening.
• meaning The premiere is on Friday evening.

Turkish often puts the most important new information at the end, so ending with cuma akşamı makes good sense here.

You can also hear more explicit versions, such as:

• Prömiyer cuma akşamı olacak. = The premiere will be on Friday evening.

But the shorter version is completely normal, especially in schedules, announcements, or casual statements.

Because Turkish does not always need a future verb form when the time expression already makes the meaning clear.

If you say:

• Prömiyer cuma akşamı

the listener understands that the premiere is scheduled for that time.

Turkish often does this with dates and times:

• Toplantı yarın. = The meeting is tomorrow.
• Sınav pazartesi. = The exam is Monday.
• Prömiyer cuma akşamı. = The premiere is Friday evening.

If you want to make the future meaning more explicit, you can say:

• Prömiyer cuma akşamı olacak.

But the shorter sentence is very common and natural.