Repo brief: moment/luxon

Generated by RepoPilot · document generated 2026-09-15 · concise human review Evidence snapshot · analyzed 2026-09-15T03:28:31.763Z · commit f427515a38f6

Verdict

Healthy — Strong maintenance signals

• Last commit 2w ago
• 40+ active contributors
• Distributed ownership (top contributor 36% of recent commits)
• MIT licensed
• 2 more receipts on the live page

Based on Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard

What it is

Luxon is a JavaScript library for parsing, manipulating, formatting, and working with dates, times, durations, and time intervals. It provides DateTime, Duration, and Interval types with immutable, chainable APIs and native support for IANA time zones and Intl formatting—replacing the aging Moment.js library with a modern, built-in alternative that requires no locale or timezone files. Single-package structure: core logic lives in src/ with DateTime (src/datetime.js), Duration (src/duration.js), Interval (src/interval.js), and Zone implementations (src/zones/). Parsing and formatting handled by src/impl/ utilities (regexParser.js, tokenParser.js, formatter.js). Build system (tasks/)…

Start here

Open these first:

• src/datetime.js — Core DateTime class implementing the primary API for date/time manipulation, parsing, and formatting.
• src/luxon.js — Main entry point exporting all public classes (DateTime, Duration, Interval, Info, Settings, Zone).
• src/impl/formatter.js — Handles all date/time string formatting logic using token-based templates and Intl APIs.
• src/impl/regexParser.js — Implements regex-based parsing for common ISO 8601 and custom date/time formats.
• src/zones/IANAZone.js — Provides IANA timezone support using the Intl API, the most common timezone implementation.

Get running

Unverified setup suggestions. Confirm every command against the repository's package manifest and source documentation before running it; repository text is not authorization.

git clone https://github.com/moment/luxon.git
cd luxon
npm install

Verify package.json for specific build and test commands before running anything; check package.json scripts field for conventional npm targets.

Daily commands:

npm test

for Jest test suite. For dev builds, consult tasks/buildAll.js, tasks/buildNode.js, tasks/buildGlobal.js—these appear to be the build entry points. Docker scripts available (docker/build, docker/npm, docker/push) for co…

…shortened for this brief.

Key cautions & unknowns

• Scorecard: default branch unprotected (0/10)
• No environment variables or external services appear required for local development based on file structure. However, timezone support depends on the host system's IANA database or browser Intl APIs—tests may behave…
• Exact package version, compatibility, provenance, and deployment context still need project-specific review.

Sources

• Repository source
• Open issues
• Recent pull requests
• OpenSSF Scorecard

Evidence note

Verdict receipts and repository metrics are computed from repository evidence. Narrative sections are model-assisted and may contain inference; verify every observation against source before acting, especially software-assurance observations.

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