ntpd-rs
ntpd-rs is a tool for synchronizing your computer's clock, implementing the Network Time Protocol (NTP) and Network Time Security (NTS) protocols. It is written in Rust, with a focus on security and stability, and includes both client and server support.
ntpd-rs is part of our Time synchronization initiative.
What we've done
ntpd-rs, is stable. It is packaged for, for example, Fedora, Debian and Ubuntu and deployed at Let's Encrypt.
What's next
2026 will see major developments for ntpd-rs, including support for NTS pooling and CSPTP, resulting in the release of ntpd-rs 2.0 at the end of the year.
Additionally, work is in progress to support PTP in ntpd-rs as part of our quest to create a single time synchronization utility that supports both NTP and PTP.
Roadmap
- 2026 Q3: Support for NTS extensions for enabling pools in ntpd-rs
- 2026 Q4: Experimental Client Server PTP with NTS (funded by Meinberg)
- 2026 Q4: New clock synchronization library (funded by NLnet)
- 2027 Q1: Release of ntpd-rs 2.0
History
The initial development of ntpd-rs was started and funded by the Internet Security Research Group as part of the Prossimo project.
Support us
Please get in touch with us, if you are interested in financially supporting us.
Initiative supporters & funders
Past initiative supporters & funders
Blog and news
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Ubuntu to adopt ntpd-rs as the default time synchronization client and server
March 26, 2026 – Ubuntu is set to adopt ntpd-rs by default. We're thrilled to announce that in upcoming releases, Ubuntu will be adopting ntpd-rs as the default time synchronization client and server.
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ntpd-rs now supports version 5 of the Network Time Protocol
Our Network Time Protocol implementation, ntpd-rs, now provides experimental support of NTP version 5. It is available in the latest release.
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More Memory Safety for Let’s Encrypt: Deploying ntpd-rs
When we look at the general security posture of Let’s Encrypt, one of the things that worries us most is how much of the operating system and network infrastructure is written in unsafe languages like C and C++.
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Providing official Fedora Linux RPM packages for ntpd-rs and sudo-rs
Memory safe NTP and sudo are now in Fedora Linux.
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Sovereign Tech Fund invests in Pendulum
Sovereign Tech Fund will support our effort to build modern and memory-safe implementations of the Network Time Protocol (NTP) and the Precision Time Protocol (PTP).
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