swift-ntp

swift-ntp provides a Network Time Protocol (NTP) client that can be used to asynchronously synchronize clocks on the network.

Overview

This library provides a client that partially implements NTP v3 (RFC 1305). It also comes with limited support for NTP v4 (RFC 5905).

Library Structure

This repository contains two main library products:

• NTPClient: Provides the high-level NTPClient. This is intended for consumption by other projects.
  • NTPClient documentation
• NTP: (package level) Contains the core NTP protocol logic, packet parsing/serialization, and data structures. It is currently not publicly accessible.

💻 Examples

Examples can be found in the Snippets directory.

// Instantiate the NTP Client
let ntp = NTPClient(
    config: NTPClient.Config(
        version: .v4 // Ensure the use of NTPv4.
    ),
    server: "time.apple.com", // Configure the time source.
)

// Asynchronously query the time source
let response = try await ntp.query(timeout: .seconds(2))

// Get clock offset.
print("offset = \(response.offset)")

🚀 Contributing

Contributions are welcome! Take a look at CONTRIBUTING.md to learn how.

🔒 Security

Security issues should be reported via the process in SECURITY.md.

🪪 License

The project is licensed under Apache 2.0 license repeated in LICENSE.txt.