Learn Dutch: De nieuwe dienstregeling geldt pas na het weekend. - The new timetable is not valid until after the weekend.

In Dutch, the time particle pas indicates that something happens later than expected. When combined with a point in time like na het weekend, it translates naturally to "not until" in English. You can also think of it as "only after", which means the exact same thing.

Why does the Dutch sentence use the verb geldt while the English translation says "is valid"?

English uses the verb "to be" plus an adjective ("is valid"), but Dutch uses the dedicated verb gelden, which means "to be valid" or "to apply". You will see this verb a lot on tickets, rules, and schedules.

How do you break down the word dienstregeling?

It is a compound of dienst (service) and regeling (arrangement or regulation). Together, they mean "timetable" or "schedule", usually for public transport.

Why does the adjective nieuw get an extra -e to become nieuwe?

Because dienstregeling is a de-word. Almost all Dutch nouns ending in -ing take de. When a de-word comes after a definite article like de, the adjective before it must get an -e at the end.