# pendulum-project/ntpd-rs

A full-featured implementation of the Network Time Protocol, including NTS support.

Repository: https://github.com/pendulum-project/ntpd-rs
Canonical: https://ross.abutalabs.com/products/ntpd-rs
Homepage: https://trifectatech.org
Language: Rust
License: NOASSERTION
License Family: other
Topics: ntp, ntp-client, ntp-protocol, ntp-server, ntpd, time-synchronization, clock, time
Last push: 2026-08-26T15:03:00+00:00

## Health v2 (maintenance only)
Score: 91/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 76, longevity 100
- inputs: {"age_days": 1643, "days_push": 7, "days_rel": 82, "gap_med": 44, "n_releases_24m": 12}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1133, forks 89 (observed 2026-08-28T04:03:43.007660+00:00)

## What it is
ntpd-rs is a memory-safe Rust implementation of the Network Time Protocol (NTP) with support for the authenticated NTS extension, providing both client and server functionality. It is a full-featured time synchronization daemon maintained by Trifecta Tech Foundation and being adopted as Ubuntu's default time synchronization tool.

## Use cases
- synchronize my computer's clock with NTP servers
- secure time synchronization with NTS authentication
- run an NTP server for my network
- memory-safe replacement for ntpd or chrony
- keep server clocks accurate in a datacenter
- time sync daemon for Linux systems

## When to choose
- you need NTS-secured time synchronization
- you want a memory-safe Rust alternative to classic ntpd
- you need both NTP client and server in one tool
- you run Ubuntu or another Linux distribution and want a modern default daemon

## When to avoid
- you need PTP (Precision Time Protocol) instead of NTP - use the related statime project
- you need a Windows-native time service
- you require features only available in chrony such as offline stepping or hardware timestamping

## Facets
- artifact type: application
- maturity: stable
- function: networking, security, cli, developer-tools
- domain: networking, operating-systems, security, self-hosted
- platform: rust, cross-platform
- tags: ntp, nts, time-synchronization, clock-sync, memory-safe, daemon, systemd, linux

## Member repositories
- pendulum-project/ntpd-rs (main) score 91

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:43.007660+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:37:27.989754+00:00, confidence not recorded.
  - readme: https://github.com/pendulum-project/ntpd-rs (fetched 2026-08-28T04:03:43.007660+00:00, sha f085e70cab1a)
  - homepage: https://trifectatech.org (fetched 2026-08-29T12:42:17.677170+00:00, sha da7190ba93bd)
  - site_page: https://trifectatech.org/about (fetched 2026-08-29T12:42:17.679815+00:00, sha 2adcc97ed958)
  - site_page: https://trifectatech.org/blog/announcing-ntpd-rs-as-default-on-ubuntu (fetched 2026-08-29T12:42:17.681926+00:00, sha 63ffa6b92875)
- Data as of 2026-08-30T08:39:29.467469+00:00.