Časový limit je jedna hodina.

Časový means time-related or time, and limit means limit. So časový limit is literally time limit.

• čas = time
• časový = time-related, temporal
• limit = limit

In this sentence, časový limit is the subject: the time limit.

Because hodina is a feminine noun, and the numeral one must agree with the gender of the noun.

Forms of one in Czech:

• jeden for masculine
• jedna for feminine
• jedno for neuter

So:

• jeden den = one day
• jedna hodina = one hour
• jedno auto = one car

Since hodina is feminine, jedna hodina is correct.

Here hodina is in the nominative case, because the sentence is an equation with to be:

• Časový limit = jedna hodina

In sentences with být (to be), Czech often uses the nominative for both sides when one thing is being identified as another.

So:

• Časový limit je jedna hodina. = The time limit is one hour.

But hodinu is accusative, and you would use that in a different structure, for example:

• Čekal jsem jednu hodinu. = I waited one hour.

So the difference is about the sentence structure, not just the meaning of hour.

Yes, you often can.

• Časový limit je jedna hodina.
• Časový limit je hodina.

Both can work. Adding jedna makes the number one more explicit, a bit like stressing it:

• The time limit is one hour rather than two hours.

Without jedna, the sentence can still sound natural because Czech does not always need the numeral when the meaning is obvious. But jedna hodina is very clear and perfectly normal.

Because Czech does not have articles like English a/an and the.

So Czech simply says:

• Časový limit je jedna hodina.

English has to choose:

• The time limit is one hour.
• sometimes A time limit is one hour in another context

In Czech, definiteness is usually understood from context, word order, or the situation.

Je means is. It is the 3rd person singular present tense form of být (to be).

Some present-tense forms of být:

• jsem = I am
• jsi/jseš = you are
• je = he/she/it is
• jsme = we are
• jste = you are
• jsou = they are

So:

• Časový limit je jedna hodina. = The time limit is one hour.

The given word order is the most neutral and natural:

• Časový limit je jedna hodina.

Czech word order is more flexible than English, so other versions are possible, but they change the emphasis.

For example:

• Jedna hodina je časový limit.
  This puts more focus on one hour.
• Limit je jedna hodina.
  Shorter, but less specific unless the context already makes it clear which limit you mean.

For learners, the safest default is the original order:

• subject + je + complement

A rough pronunciation is:

CHA-so-vee LI-mit ye YED-na HO-di-na

A few helpful points:

• č sounds like ch in chocolate
• š would sound like sh, but it does not appear here
• j in Czech sounds like English y
• je sounds roughly like ye
• stress in Czech usually falls on the first syllable of each word:
  • ČAsový
  • LImit
  • JE
  • JEdna
  • HOdina

The long vowels marked by accents are pronounced longer:

• á in časový
• ý in časový

Czech can express this idea in more than one way.

• časový limit = time limit
• limit času = literally limit of time

The adjective version, časový limit, is very common and natural. It works like English noun modifiers such as time limit, school bus, coffee cup, except Czech often uses an adjective where English uses a noun.

So an English speaker might expect something closer to limit času, but časový limit is the standard phrase.

It is neutral and standard. You could see it in:

• instructions
• exams
• applications
• competitions
• official notices

It sounds natural in everyday and formal contexts.

If you wanted to sound slightly more conversational, context might lead to shorter versions like:

• Máte na to jednu hodinu. = You have one hour for it.
• Limit je hodina. = The limit is an hour.

But the original sentence is perfectly normal Czech.

Because hodina can mean both hour and lesson/class, but the context decides.

In this sentence:

• Časový limit je jedna hodina.

the phrase časový limit clearly points to a unit of time, so hodina means hour.

Compare:

• Mám hodinu češtiny. = I have a Czech class.
• Čekal jsem hodinu. = I waited an hour.

So the same word can have different meanings, but here the meaning is unambiguous.