kyou wa taichou ga warui node, kaisha o yasumimasu.

Because I am not feeling well today, I will take the day off from work.

Breakdown of kyou wa taichou ga warui node, kaisha o yasumimasu.

• は: topic particle
• を: direct object particle
• 今きょ日う: today
• が: subject particle

Questions & Answers about kyou wa taichou ga warui node, kaisha o yasumimasu.

Why is 今日 followed by は instead of に?

今日 is being used as the topic here, so は is natural.

• 今日は = as for today / today
• It sets the scene for the rest of the sentence.

You often do not need に with words like:

• 今日
• 明日
• 昨日
• 毎日

These time words can usually appear without any particle when they mean when something happens.

So:

• 今日は体調が悪いので、会社を休みます。 = As for today, since I’m not feeling well, I’ll be absent from work.

If you used 今日に, that would sound unnatural in this sentence.

Why is 体調 marked with が?