Day.js

COLLECTIVE

date-formatting

Fiscal Host: Open Source Collective

2KB immutable date library alternative to Moment.js with the same modern API

This is Day.js's page Day.js

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$1,650 USD since Feb 2023

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$350 USD since Sep 2023

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$290 USD since Jul 2019

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$50 USD since May 2025

Day.js is all of us

Our contributors 35

Thank you for supporting Day.js.

iamkun

Admin

Sight & Sound

sponsor

$1,650 USD

Robert Chapman

$950 USD

Chudovo

sponsor

$350 USD

清土伸康

$304 USD

Datawrapper

backer

$290 USD

Docbot

sponsor

$200 USD

Sudharaka

backer

$152 USD

Keep up the good work! :)

365Talents

$125 USD

SheetJS

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$100 USD

Budget

Transparent and open finances.

Monthly financial contribution to Day.js (sponsor)

Credit from Filerev to Day.js • October 16, 2025

+$50.00USD

Completed

Contribution #893551

Monthly financial contribution to Day.js (backer)

Credit from Randy Lu to Day.js • October 11, 2025

+$1.00USD

Completed

Contribution #171896

Monthly financial contribution to Day.js (backer)

Credit from Raphael Soares to Day.js • October 10, 2025

+$1.00USD

Completed

Contribution #783240

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Today’s balance

$2,256.06 USD

Total raised

$4,234.76 USD

Total disbursed

$1,978.70 USD

Estimated annual budget

$2,195.00 USD

About

Day.js is a minimalist JavaScript library that parse, validate, manipulate, and display 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.

Our team

iamkun

Admin