Schemat ändras om mötet börjar senare.

In Swedish, the is often added to the end of the noun instead of appearing as a separate word.

So here:

• schema = schedule
• schemat = the schedule

and

• möte = meeting
• mötet = the meeting

Both schema and möte are ett-words (neuter nouns), so their definite singular form usually ends in -t.

So:

• ett schema → schemat
• ett möte → mötet

The -s here marks the s-passive, a very common Swedish passive form.

• ändra = to change something
• ändras = to be changed / to change

So Schemat ändras literally looks like The schedule is changed, but in natural English it may also be understood as The schedule changes, depending on context.

This -s passive is extremely common in Swedish, especially in formal or neutral statements.

Here om means if.

So:

• om mötet börjar senare = if the meeting starts later

A useful thing to know is that om can also mean whether in other sentences, but in this sentence it is clearly conditional, so it means if.

Because om introduces a subordinate clause.

In Swedish, main clauses usually follow the verb-second rule, but subordinate clauses do not. After a subordinating word like om, the normal order is:

• subject + verb

So:

• om mötet börjar senare = correct

not

• om börjar mötet senare = incorrect

This is a very important difference between Swedish main clauses and subordinate clauses.

Swedish often uses the present tense for future meaning when the time is understood from context.

So:

• mötet börjar senare can mean the meeting starts later or the meeting will start later
• schemat ändras can mean the schedule changes or the schedule will be changed

This is very normal in Swedish. English does something similar in if-clauses:

• if the meeting starts later

  not usually

• if the meeting will start later

So the Swedish tense choice is very natural here.

Senare means later.

It is the comparative form related to sen / sent:

• sent = late
• senare = later

So:

• Mötet börjar sent = The meeting starts late
• Mötet börjar senare = The meeting starts later

The second one implies comparison: later than expected, later than planned, or later than something else.

Grammatically, ändras is a passive-type form, so a very literal reading is is changed.

But in real usage, English may translate it more naturally as either:

• the schedule is changed
• the schedule changes

The best choice depends on the intended meaning and style.

In many everyday contexts, Swedish uses ändras where English might prefer the simpler active-looking changes. So even though the form is passive, the most natural English translation is not always a passive sentence.

Because Swedish usually does not use a separate word for the before a noun in ordinary definite forms.

Instead, the noun itself carries the definiteness:

• schemat = the schedule
• mötet = the meeting

A separate definite word such as det or den is mainly used when there is an adjective:

• schemat = the schedule
• det nya schemat = the new schedule

So in your sentence, no separate article is needed.