Gathering detailed insights and metrics for dayjs
Gathering detailed insights and metrics for dayjs
⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
Installations
npm install dayjsDeveloper Guide
BETA
Typescript
Yes
Module System
CommonJS
Node Version
20.16.0
NPM Version
10.8.1
Releases
119
Languages
1
JavaScript
JavaScript (100%)
Developer
Download Statistics
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
GitHub Statistics
MIT License
47,968 Stars
1,559 Commits
2,369 Forks
278 Watchers
9 Branches
331 Contributors
Updated on Jul 12, 2025
Maintainers
1
Package Meta Information
Latest Version
1.11.13
Package Id
dayjs@1.11.13
Unpacked Size
654.57 kB
Size
141.71 kB
File Count
451
NPM Version
10.8.1
Node Version
20.16.0
Published on
Aug 20, 2024
Total Downloads
Cumulative downloads
Total Downloads
NaN
Last Day
0%
NaN
Compared to previous day
Last Week
0%
NaN
Compared to previous week
Last Month
0%
NaN
Compared to previous month
Last Year
0%
NaN
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dev Dependencies
29
@babel/cli@babel/core@babel/node@babel/preset-envbabel-corebabel-jestbabel-plugin-external-helperscross-enveslinteslint-config-airbnb-baseeslint-plugin-importeslint-plugin-jestgzip-size-clijasmine-corejestkarmakarma-jasminekarma-sauce-launchermockdatemomentmoment-timezonencppre-commitprettierrolluprollup-plugin-babelrollup-plugin-tersersize-limittypescript
English | 简体中文 | 日本語 | Português Brasileiro | 한국어 | Español (España) | Русский | Türkçe | සිංහල | עברית
Fast 2kB alternative to Moment.js with the same modern API
Day.js is a minimalist JavaScript library that parses, validates, manipulates, and displays dates and times for modern browsers with a largely Moment.js-compatible API. If you use Moment.js, you already know how to use Day.js.
1dayjs().startOf('month').add(1, 'day').set('year', 2018).format('YYYY-MM-DD HH:mm:ss');
- 🕒 Familiar Moment.js API & patterns
- 💪 Immutable
- 🔥 Chainable
- 🌐 I18n support
- 📦 2kb mini library
- 👫 All browsers supported
Getting Started
Documentation
You can find more details, API, and other docs on day.js.org website.
Installation
1npm install dayjs --save
API
It's easy to use Day.js APIs to parse, validate, manipulate, and display dates and times.
1dayjs('2018-08-08') // parse 2 3dayjs().format('{YYYY} MM-DDTHH:mm:ss SSS [Z] A') // display 4 5dayjs().set('month', 3).month() // get & set 6 7dayjs().add(1, 'year') // manipulate 8 9dayjs().isBefore(dayjs()) // query
I18n
Day.js has great support for internationalization.
But none of them will be included in your build unless you use it.
1import 'dayjs/locale/es' // load on demand 2 3dayjs.locale('es') // use Spanish locale globally 4 5dayjs('2018-05-05').locale('zh-cn').format() // use Chinese Simplified locale in a specific instance
Plugin
A plugin is an independent module that can be added to Day.js to extend functionality or add new features.
1import advancedFormat from 'dayjs/plugin/advancedFormat' // load on demand 2 3dayjs.extend(advancedFormat) // use plugin 4 5dayjs().format('Q Do k kk X x') // more available formats
Usage Trend
Sponsors
Support this project by becoming a sponsor. Your logo will show up here with a link to your website.
[Become a sponsor via Github] [Become a sponsor via OpenCollective]
Contributors
This project exists thanks to all the people who contribute.
Please give us a 💖 star 💖 to support us. Thank you.
And thank you to all our backers! 🙏
License
Day.js is licensed under a MIT License.
No vulnerabilities found.
Reason
no dangerous workflow patterns detected
Reason
no binaries found in the repo
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: MIT License: LICENSE:0
Reason
5 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 4
Reason
Found 1/26 approved changesets -- score normalized to 0
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: jobLevel 'contents' permission set to 'write': .github/workflows/release.yml:20
- Warn: no topLevel permission defined: .github/workflows/check.yml:1
- Info: topLevel 'contents' permission set to 'read': .github/workflows/release.yml:10
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/check.yml:15: update your workflow using https://app.stepsecurity.io/secureworkflow/iamkun/dayjs/check.yml/dev?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/check.yml:17: update your workflow using https://app.stepsecurity.io/secureworkflow/iamkun/dayjs/check.yml/dev?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:26: update your workflow using https://app.stepsecurity.io/secureworkflow/iamkun/dayjs/release.yml/dev?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/release.yml:31: update your workflow using https://app.stepsecurity.io/secureworkflow/iamkun/dayjs/release.yml/dev?enable=pin
- Warn: npmCommand not pinned by hash: .github/workflows/check.yml:23
- Warn: npmCommand not pinned by hash: .github/workflows/check.yml:23
- Warn: npmCommand not pinned by hash: .github/workflows/release.yml:47
- Info: 0 out of 4 GitHub-owned GitHubAction dependencies pinned
- Info: 0 out of 3 npmCommand dependencies pinned
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 8 are checked with a SAST tool
Reason
102 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-968p-4wvh-cqc8
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-v88g-cgmw-v5xw
- Warn: Project is vulnerable to: GHSA-42xw-2xvc-qx8m
- Warn: Project is vulnerable to: GHSA-4w2v-q235-vp99
- Warn: Project is vulnerable to: GHSA-cph5-m8f7-6c5x
- Warn: Project is vulnerable to: GHSA-wf5p-g6vw-rhxx
- Warn: Project is vulnerable to: GHSA-jr5f-v2jv-69x6
- Warn: Project is vulnerable to: GHSA-pp7h-53gx-mx7r
- Warn: Project is vulnerable to: GHSA-qwcr-r2fm-qrc7
- Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
- Warn: Project is vulnerable to: GHSA-cwfw-4gq5-mrqx
- Warn: Project is vulnerable to: GHSA-g95f-p29q-9xw4
- Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
- Warn: Project is vulnerable to: GHSA-x9w5-v3q2-3rhw
- Warn: Project is vulnerable to: GHSA-pxg6-pf52-xh8x
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-w573-4hg7-7wgq
- Warn: Project is vulnerable to: GHSA-9j49-mfvp-vmhm
- Warn: Project is vulnerable to: GHSA-phwq-j96m-2c2q
- Warn: Project is vulnerable to: GHSA-ghr5-ch3p-vcr6
- Warn: Project is vulnerable to: GHSA-434g-2637-qmqr
- Warn: Project is vulnerable to: GHSA-49q7-c7j4-3p7m
- Warn: Project is vulnerable to: GHSA-977x-g7h5-7qgw
- Warn: Project is vulnerable to: GHSA-f7q4-pwc6-w24p
- Warn: Project is vulnerable to: GHSA-fc9h-whq2-v747
- Warn: Project is vulnerable to: GHSA-vjh7-7g9h-fjfh
- Warn: Project is vulnerable to: GHSA-j4f2-536g-r55m
- Warn: Project is vulnerable to: GHSA-r7qp-cfhv-p84w
- Warn: Project is vulnerable to: GHSA-rv95-896h-c2vc
- Warn: Project is vulnerable to: GHSA-qw6h-vgh9-j6wx
- Warn: Project is vulnerable to: GHSA-74fj-2j2h-c42q
- Warn: Project is vulnerable to: GHSA-pw2r-vq6v-hr8c
- Warn: Project is vulnerable to: GHSA-jchw-25xp-jwwc
- Warn: Project is vulnerable to: GHSA-cxjh-pqwp-8mfp
- Warn: Project is vulnerable to: GHSA-44pw-h2cw-w3vq
- Warn: Project is vulnerable to: GHSA-jp4x-w63m-7wgm
- Warn: Project is vulnerable to: GHSA-c429-5p7v-vgjp
- Warn: Project is vulnerable to: GHSA-78xj-cgh5-2h22
- Warn: Project is vulnerable to: GHSA-2p57-rm9w-gvfp
- Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
- Warn: Project is vulnerable to: GHSA-7x7c-qm48-pq9c
- Warn: Project is vulnerable to: GHSA-rc3x-jf5g-xvc5
- Warn: Project is vulnerable to: GHSA-76p3-8jx3-jpfq
- Warn: Project is vulnerable to: GHSA-3rfm-jhwj-7488
- Warn: Project is vulnerable to: GHSA-hhq3-ff78-jv3g
- Warn: Project is vulnerable to: GHSA-82v2-mx6x-wq7q
- Warn: Project is vulnerable to: GHSA-4xcv-9jjx-gfj3
- Warn: Project is vulnerable to: GHSA-7wpw-2hjm-89gp
- Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
- Warn: Project is vulnerable to: GHSA-vh95-rmgr-6w4m
- Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
- Warn: Project is vulnerable to: GHSA-wc69-rhjr-hc9g
- Warn: Project is vulnerable to: GHSA-56x4-j7p9-fcf9
- Warn: Project is vulnerable to: GHSA-v78c-4p63-2j6c
- Warn: Project is vulnerable to: GHSA-4c7m-wxvm-r7gc
- Warn: Project is vulnerable to: GHSA-pch5-whg9-qr2r
- Warn: Project is vulnerable to: GHSA-5fw9-fq32-wv5p
- Warn: Project is vulnerable to: GHSA-48ww-j4fc-435p
- Warn: Project is vulnerable to: GHSA-hwqf-gcqm-7353
- Warn: Project is vulnerable to: GHSA-9h6g-pr28-7cqp
- Warn: Project is vulnerable to: GHSA-6fx8-h7jm-663j
- Warn: Project is vulnerable to: GHSA-9wv6-86v2-598j
- Warn: Project is vulnerable to: GHSA-rhx6-c78j-4q9w
- Warn: Project is vulnerable to: GHSA-h7cp-r72f-jxh6
- Warn: Project is vulnerable to: GHSA-v62p-rq8g-8h59
- Warn: Project is vulnerable to: GHSA-566m-qj78-rww5
- Warn: Project is vulnerable to: GHSA-7fh5-64p2-3v2j
- Warn: Project is vulnerable to: GHSA-35q2-47q7-3pc3
- Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
- Warn: Project is vulnerable to: GHSA-hjp8-2cm3-cc45
- Warn: Project is vulnerable to: GHSA-gcx4-mw62-g8wm
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-m6fv-jmcg-4jfg
- Warn: Project is vulnerable to: GHSA-h9rv-jmmf-4pgx
- Warn: Project is vulnerable to: GHSA-hxcc-f52p-wc94
- Warn: Project is vulnerable to: GHSA-cm22-4g7w-348p
- Warn: Project is vulnerable to: GHSA-fxwf-4rqh-v8g3
- Warn: Project is vulnerable to: GHSA-25hc-qcg6-38wj
- Warn: Project is vulnerable to: GHSA-xfhh-g9f5-x4m4
- Warn: Project is vulnerable to: GHSA-qm95-pgcg-qqfq
- Warn: Project is vulnerable to: GHSA-cqmj-92xf-r6r9
- Warn: Project is vulnerable to: GHSA-vx3p-948g-6vhq
- Warn: Project is vulnerable to: GHSA-4wf5-vphf-c2xc
- Warn: Project is vulnerable to: GHSA-f523-2f5j-gfcg
- Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
- Warn: Project is vulnerable to: GHSA-7p7h-4mm5-852v
- Warn: Project is vulnerable to: GHSA-xc7v-wxcw-j472
- Warn: Project is vulnerable to: GHSA-cf4h-3jhx-xvhq
- Warn: Project is vulnerable to: GHSA-9m6j-fcg5-2442
- Warn: Project is vulnerable to: GHSA-hh27-ffr2-f2jc
- Warn: Project is vulnerable to: GHSA-rqff-837h-mm52
- Warn: Project is vulnerable to: GHSA-8v38-pw62-9cw2
- Warn: Project is vulnerable to: GHSA-hgjh-723h-mx2j
- Warn: Project is vulnerable to: GHSA-jf5r-8hm2-f872
- Warn: Project is vulnerable to: GHSA-mgfv-m47x-4wqp
- Warn: Project is vulnerable to: GHSA-pgr8-jg6h-8gw6
- Warn: Project is vulnerable to: GHSA-j8xg-fqg3-53r7
- Warn: Project is vulnerable to: GHSA-3h5v-q93c-6h6q
- Warn: Project is vulnerable to: GHSA-72mh-269x-7mh5
- Warn: Project is vulnerable to: GHSA-h4j5-c7cj-74xg
- Warn: Project is vulnerable to: GHSA-p9pc-299p-vxgp
Score
3.2
/10
Last Scanned on 2025-07-07
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