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
Score
99.4
Supply Chain
84.3
Quality
77.8
Maintenance
100
Vulnerability
100
License
Releases
119
Languages
1
JavaScript
JavaScript (100%)
Developer
Download Statistics
Total Downloads
3,466,374,690
Last Day
4,184,468
Last Week
25,782,522
Last Month
113,740,428
Last Year
1,148,353,393
GitHub Statistics
MIT License
47,979 Stars
1,559 Commits
2,369 Forks
278 Watchers
9 Branches
331 Contributors
Updated on Jul 15, 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
3,466,374,690
Last Day
21.7%
4,184,468
Compared to previous day
Last Week
2.6%
25,782,522
Compared to previous week
Last Month
4.8%
113,740,428
Compared to previous month
Last Year
20.3%
1,148,353,393
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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