Как по Английски будет соблюдение праздников

noun

The action or fact of owning, maintaining, or protecting something.

Примеры использования:

The keeping of dogs

verb

Have or retain possession of.

Примеры использования:

Return one copy to me, keeping the other for your files

noun

Doing something you promised or had scheduled

Примеры использования:

We all get together for dinner once a month, in keeping with (= following) family tradition.