[Home](./index.md) > [@firebase/firestore](./firestore.md) > [lite](./firestore_lite.md) > [Timestamp](./firestore_lite.timestamp.md) > [nanoseconds](./firestore_lite.timestamp.nanoseconds.md) ## Timestamp.nanoseconds property The fractions of a second at nanosecond resolution.\* Signature: ```typescript readonly nanoseconds: number; ```