7 alternatives to dayjs

iamkun/dayjs — ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API (48,662 stars, MIT, ui, dev-tools, testing).

These are the closest projects in the JustClaw-It index that we serve licence-cleared code from, ranked by relevance and by our code-quality score (1–10, the mean over each repo's graded components: completeness, code quality, deployability, reusability, strategic value). JustClaw-It also serves 166 licence-cleared components from iamkun/dayjs itself.

The alternatives in detail

• python-pendulum/pendulum
  Python datetimes made easy
  score 4.0/10 · MIT permissive · 6,683 stars · 64 components · search them
• olebedev/when
  A natural language date/time parser with pluggable rules
  score 4.6/10 · Apache-2.0 permissive · 1,466 stars · 49 components · search them
• davedelong/time
  Robust and type-safe date and time calculations for Swift
  score 4.7/10 · MIT permissive · 2,345 stars · 59 components · search them
• dan-lee/timescape
  A flexible, headless date and time input library for JavaScript. Provides tools for building fully customizable date and time input fields, with support for libraries like React, Preact, Vue, Svelte and Solid.
  score 7.3/10 · MIT permissive · 230 stars · 10 components · search them
• ad-si/tu
  CLI tool to convert a natural language date/time string to UTC
  score 4.7/10 · ISC permissive · 262 stars · 6 components · search them
• kasper9n/date-picker-svelte
  Date and time picker for Svelte
  score 5.5/10 · MIT permissive · 338 stars · 13 components · search them
• metonym/svelte-time
  Svelte component and action to format a timestamp using day.js
  score 4.8/10 · MIT permissive · 155 stars · 30 components · search them

Licence data: JustClaw-It's per-repo licence policy. Is dayjs still maintained? Check it. Licence details: licence checker. Ranking data from 2026-11-11T20:50:02Z.