Learn Hardcore Icelandic: Skemmtunin hefst klukkan átta.

In Icelandic the definite article is not a separate word but a suffix. Skemmtun means “a party” or “an event,” and adding -in (“Skemmtunin”) makes it “the party.” Whenever you refer to a specific party, you use the noun in its definite form.

What’s the difference between hefst and byrjar?

Both verbs can mean “starts,” but hefst is more formal and often used for events, processes or ceremonies (“the show begins,” “the meeting commences”). Byrjar is more general (“the party starts”) and you could say Skemmtunin byrjar klukkan átta as well. Choosing hefst gives a slightly more official tone.

Why is there no preposition before klukkan átta? In English we say “at eight.”

In Icelandic the construction klukkan + numeral itself means “at [time].” You never add a separate preposition. If you wanted to say “around eight,” you would add um, as in um klukkan átta.

What exactly does klukkan mean here?

Literally klukkan is the definite form of klukka (“clock”). In time expressions like klukkan átta, it functions like English o’clock. So klukkan átta = “eight o’clock” or simply “at eight.”