الامتحان هيخلص بعد ساعة.

A natural Egyptian pronunciation is approximately:

el-emteḥān hayikhlaṣ baʿd sāʿa

A simpler learner-friendly version would be:

el emtehan hayekhlas ba'd sa'a

Word by word:

• الامتحان = el-emteḥān
• هيخلص = hayikhlaṣ
• بعد = baʿd
• ساعة = sāʿa

No. In this sentence, هيخلص is not the pronoun هي.

It is:

• ه = the Egyptian future marker, meaning will
• يخلص = he/it finishes, ends

So هيخلص means he/it will finish / will end.

This is a very common point of confusion for learners, because هي can also be a separate word meaning she. But here there is no separate pronoun—it is just the future prefix attached to the verb.

Here يخلص means to finish, to end, or to be over.

With الامتحان as the subject, the most natural English meaning is:

• The exam will end
• The exam will be over

So even though English often says be over, Egyptian Arabic can simply use the verb خلص.

Because الامتحان is a singular masculine noun, and Arabic verbs agree with the subject.

So:

• الامتحان = the exam
• it takes يخلص = it finishes / it ends

In Arabic, the same verb form is used for he and it when the noun is masculine singular.

Because in Egyptian Arabic, starting with the subject is very common and natural.

So:

• الامتحان هيخلص بعد ساعة = The exam will end in an hour

This subject-first order often feels more conversational in Egyptian Arabic.

A verb-first structure is possible in Arabic more generally, but this noun-first structure is extremely common in everyday Egyptian speech.

ال is the definite article, meaning the.

So:

• امتحان = an exam
• الامتحان = the exam

In this sentence, the speaker means a specific exam, so الامتحان is the natural choice.

Here بعد ساعة means in an hour or one hour from now.

So the full sentence means that from the current moment, the exam will end one hour later.

In many contexts, بعد literally means after, but in time expressions like this, English usually translates it more naturally as in:

• بعد ساعة = in an hour
• بعد يومين = in two days

Because Arabic often uses the noun by itself to mean an hour / one hour, especially in common time expressions.

So:

• بعد ساعة = in an hour

You do not need to add واحدة here. You could add it in some contexts for emphasis, but it is usually unnecessary.

This is similar to English saying in an hour, not necessarily in one hour unless you want emphasis.

It is Egyptian Arabic.

The clearest Egyptian feature is the future marker ه in هيخلص.

In Modern Standard Arabic, you would more likely see something like:

• سينتهي الامتحان بعد ساعة
• الامتحان سينتهي بعد ساعة

So the sentence you gave is natural spoken Egyptian.

Yes. By itself, هيخلص can mean:

• he will finish
• it will finish
• it will end

The exact meaning depends on the subject.

Examples:

• أحمد هيخلص بعد شوية = Ahmed will finish in a little while
• الامتحان هيخلص بعد ساعة = The exam will end in an hour

So context tells you whether it means he or it, and whether finish or end sounds better in English.

Because Arabic often uses a simple active verb where English prefers a different structure.

In English, we might say:

• The exam will end
• The exam will be over
• The exam will finish

In Egyptian Arabic, الامتحان هيخلص is a normal and natural way to express that idea.

So it is better not to translate word-for-word too rigidly. Think of the whole phrase as the natural Arabic way to say that the exam is coming to an end.

You would usually say:

الامتحان مش هيخلص بعد ساعة

This means:

• The exam won’t end in an hour
• The exam won’t be over in an hour

In Egyptian Arabic, مش is the common way to negate this kind of sentence.

Yes. ساعة can also mean clock or watch, depending on context.

But in بعد ساعة, it clearly means hour, because it is part of a time expression.

So here there is no real ambiguity:

• بعد ساعة = in an hour