بكرا عندي دوام من التسعة للخمسة، ولازم ما اتاخر.

It is colloquial Levantine Arabic, not formal Modern Standard Arabic.

A more formal version would be something like:

غدًا عندي دوام من التاسعة إلى الخامسة، ويجب ألا أتأخر.

What makes the original sound colloquial:

• بكرا instead of formal غدًا
• للخمسة instead of formal إلى الخامسة
• casual spelling like اتاخر instead of أتأخر

So this is the kind of sentence you would naturally hear in everyday conversation in the Levant.

بكرا means tomorrow.

It is very common in Levantine, and you will also hear it in other dialects. Depending on the speaker, it may sound like bukra or bokra.

In formal Arabic, the usual word is غدًا, but in conversation بكرا is much more natural.

This is a very common Arabic pattern.

عندي literally means at me:

• عند = at / with
• ـي = my / me

So عندي دوام is literally something like there is work/attendance at me, but in natural English that becomes I have work or I have a shift.

This pattern is used all the time:

• عندي سيارة = I have a car
• عندي امتحان = I have an exam
• عندي شغل = I have work

Related forms:

• عندك = you have
• عنده = he has
• عندها = she has

دوام usually refers to work hours, school hours, attendance, or a shift/schedule.

In this sentence, عندي دوام most naturally means:

• I have work
• I have a shift
• I have classes / I’m on duty

It is a little more specific than شغل.

A useful rough distinction:

• شغل = work in a broad sense, job, tasks, stuff to do
• دوام = the actual scheduled period when you are expected to be at work or school

So عندي دوام من التسعة للخمسة sounds like I’m scheduled from nine to five.

In Arabic, when talking about clock times, speakers very often use the definite form:

• التسعة = nine o’clock
• الخمسة = five o’clock

So من التسعة للخمسة is the natural colloquial way to say from nine to five.

It may feel strange to an English speaker because English does not say from the nine to the five, but Arabic often does this with times.

You may also hear longer versions like:

• من الساعة تسعة للساعة خمسة
• من الساعة التاسعة إلى الساعة الخامسة

But the shorter version in your sentence is very natural in speech.

Here, لـ means to / until in a time range.

So:

• من التسعة للخمسة = from nine to five

للخمسة is basically:

• لـ + الخمسة
• which combines into للخمسة

In more formal Arabic, you would often use إلى instead:

• من التاسعة إلى الخامسة

But in Levantine speech, لـ is very common and sounds more natural.

Because بكرا already makes the time reference clear.

Arabic often does not need an extra future marker if a time word already shows that the event is in the future.

So:

• بكرا عندي دوام = Tomorrow I have work

You could say something heavier like بكرا رح يكون عندي دوام, but in everyday speech that is often unnecessary.

This is very normal in Arabic:

• بكرا بروح = I’m going tomorrow / Tomorrow I’ll go
• بكرا عندي امتحان = Tomorrow I have an exam

So the future is understood from بكرا.

ولازم is made of two parts:

• و = and
• لازم = necessary / must / have to

So ولازم means and I have to... or and it’s necessary that...

In Levantine, لازم is one of the most common ways to express obligation:

• لازم روح = I have to go
• لازم تدرس = you have to study
• لازم ننتبه = we have to pay attention

It is extremely common in spoken Arabic.

Because ما is the normal way to negate a verb in Levantine.

So:

• اتاخر / أتأخر = I’m late / I get late
• ما اتاخر = I’m not late / I don’t get late / I not be late, depending on context

With لازم, the structure لازم ما + verb means something like:

• I have to not be late
• I mustn’t be late

You may also hear ما لازم اتأخر in real speech. Both patterns exist, but لازم ما اتأخر very clearly means it’s necessary that I not be late.

Also note:

• ما usually negates verbs
• مو / مش usually negate nouns, adjectives, or whole statements

So ما اتأخر is the natural verbal negation here.

This is a very useful grammar point.

In Levantine, after words like لازم, speakers often use the bare imperfect form, without the بـ prefix.

So you get:

• لازم اتأخر structurally = I have to be late
• لازم ما اتاخر = I have to not be late

But in ordinary present/habitual statements, you often use بـ:

• بتأخر كل يوم = I’m late every day / I keep arriving late every day

So a rough rule is:

• بتأخر = regular present/habitual
• اتأخر after لازم, بدي, and similar words

Also, the more careful spelling is أتأخر. In casual typing, people often write اتاخر and leave out the hamza.

Yes. Arabic word order is flexible.

All of these can work, with slightly different emphasis:

• بكرا عندي دوام من التسعة للخمسة = Tomorrow, I have work from nine to five
• عندي دوام بكرا من التسعة للخمسة = I have work tomorrow from nine to five
• من التسعة للخمسة عندي دوام بكرا = possible, but less neutral and more marked

Starting with بكرا is very natural because it sets the time right away.

So the original sentence sounds smooth and normal, especially in conversation.