Is freitags a noun or an adverb?

You know that nouns in German have capital letters. This means that when you see the sentence 'wie ist das Wetter heute?' you know the weather is a noun and you also know that heute is not a noun. Any words that describe a verb are adverbs. You can run quickly and you will also notice that adverbs often end in ly. However adverbs of time come in all shapes and sizes. Afterwards, later, rarely, daily and yesterday are all examples of adverbs of time. If you cannot remember being taught about adverbs of time in English it is because we use them naturally as describing words. Now you know they are not nouns and it is obvious in German.

If you want to say in the evening(s), you just add an s to abend so you can say 'abends sehe ich fern'. Similarly you can say freitags or montags if you want to say on Fridays or on Mondays. Notice that I have added an s and Freitag no longer has a capital letter. It has gone from a noun to an adverb. Jetzt is another adverb of time which is a good word to learn. In fact learn it now. Gleich is the word for at once and it has a capital letter this time as you would expect because it starts this sentence.

Bis bald