dayjs vs date fns reddit

Hi guys, I have to work with dates, for example I have to check if they are valid, I have to format them and to check if a date is greater than another one.

In past i used Moment, but I read that we should avoid to use it for future projects. I read someone suggested to use Datejs, but it doesn't seems to be updated, last time was 8 years ago. Currently I'm thinking to use Luxon but I someone suggest Date-fns also.

What library are you using and do you recommend me?

Top answer

1 of 43

When I'm asked to handle dates, I just quit and find a job elsewhere.

2 of 43

Go with Day.js

reddit.com › r/react › luxon vs datefns

r/react on Reddit: Luxon vs DateFns

March 27, 2024 -

Which library do u guys prefer and why? When does the one makes more sense than the other once?

Ps. I am building a event calendar application

Top answer

1 of 2

I use DayJs. Mostly because the bundle size is tiny and because the old code was moment and the migration was very easy. It’s worth checking out imo

2 of 2

I like dayjs, but they have a timezone problem that has been unfixed for a while, and Luxon seems to be the only acurrate one, despite a larger bundle size. If you don't work with timezones (or DST), dayjs should be perfect. However, (as of May 2024) since you're working on a event calendar app, you should be aware that if you use dayjs or datefns timezone functions and add a week, where the resulting date has daylight savings, dayjs (and DateFns) will ignore it. To illustrate: dayjs.utc('2020-03-04T10:00:00Z').tz('America/New_York').add(1, 'week') // offset should be -240 since DST happens on 2020-03-05 // but the offset remains what the starting offset is, (-300) Both dayjs and datefns have this issue. A recurrence pattern of "Every Wednesday 5:00pm in New York", New Yorkers will expect the event to recur on 5:00pm every wednesday, local time, whether it be in EDT or EST. Dayjs and DateFns don't take this into account, which result in some wednesdays being 6:00pm local time (or 4:00pm) depending on what the starting timezone is.

reddit.com › r/frontend › what is better, date-fns or moment.js?

r/Frontend on Reddit: What is better, Date-fns or moment.js?

June 29, 2023 - Indeed, as mentioned on Moment's website there is a "better" drop-in replacement for it called dayjs with mostly the same API.

reddit.com › r/node › what’s your favorite date package?

r/node on Reddit: What’s your favorite date package?

March 31, 2024 -

Starting a new project and we started discussing date packages(our project is date oriented, can’t find a better name for it lol, lots of appointment time generations and such)

We thought about Luxon but I wanted to hear if you guys have other suggestions

Top answer

1 of 30

113

For me. it's got to be date-fns. Works off of typical JavaScript Date objects, and lots of handy utility functions. https://date-fns.org/

2 of 30

Luxon is great, especially if you have to deal with a lot of timezone stuff.

DhiWise

dhiwise.com › post › date-fns-vs-dayjs-the-battle-of-javascript-date-libraries

Date fns vs. Dayjs: A Developer's Guide to Making the Right Choice

March 22, 2024 - Are you still determining which library is best for manipulating dates and times in JavaScript? This guide compares Date fns and Dayjs, exploring their functionalities.

reddit.com › r/javascript › day.js - fast 2kb alternative to moment.js with the same modern api

r/javascript on Reddit: Day.js - Fast 2kB alternative to Moment.js with the same modern API

October 10, 2022 - I love date-fns but at 2kbs for the whole thing dayjs is worth taking a look, format alone is 6kb according to bundlephobia:

reddit.com › r/webdev › dayjs - fast 2kb alternative to moment.js with the same modern api

r/webdev on Reddit: dayjs - fast 2kB alternative to Moment.js with the same modern API

April 23, 2018 - Why not use date-fns for that? In operates on native Date object and not some abstraction therefore you can import only single function. ... The heaviness is due to all the locales moment.js ships with. They really need to figure a better way of distributing / picking what you need. In the mean time there's ways to make build tools drop those unused locales. One thing I don't see in the dayjs ...

reddit.com › r/reactjs › would you recommend using moment.js for working with dates & times

Would you recommend using moment.js for working with dates & times : r/reactjs

October 8, 2024 - Nope. For new project use dayjs if you want to have same API as momentjs ... I know a lot of people like date-fns, but it still uses Date, which I find to be a horribly designed type:

Find elsewhere

Google Bing Mojeek

reddit.com › r/reactjs › replacing momentjs with date-fns for a smaller package size

r/reactjs on Reddit: Replacing MomentJS with Date-fns for a Smaller Package Size

September 17, 2022 - I've preferred date-fns over dayjs because I don't like the jQuery/moment style interface, but I agree that it's an easier drop-in replacement for moment.

reddit.com › r/learnjavascript › what library do you use to handle dates?

r/learnjavascript on Reddit: What library do you use to handle dates?

June 9, 2023 -

Hi guys, I have to work with dates, for example I have to check if they are valid, I have to format them and to check if a date is greater than another one.

What library are you using and do you recommend me?

Top answer

1 of 9

I might not use a library at all. Pattern matching to check validity, create a Date object and compare the results of getTime()

2 of 9

I use Day.js in my projects.

reddit.com › r/javascript › [askjs] what's your current go-to date library?

r/javascript on Reddit: [AskJS] What's your current go-to Date library?

March 14, 2020 -

I have primarily used date-fns and momentjs in the past. I want to move one on my main projects away from Moment but I'm not sure what to move to.

This will be used in a React/Nodejs app and I'm prioritising performance over anything else. Seems the most popular currently are date-fns and dayjs - I was curious to see what everyone else went for at the moment.

Top answer

1 of 7

I’ve switched to dayjs because it does all the stuff we used moment for and the footprint is so incredibly small. It did take some annoying configuring to get unit tests to run for files that import dayjs. Am still happy with the choice

2 of 7

datefns: https://date-fns.org/

reddit.com › r/javascript › you might not need date-fns

r/javascript on Reddit: You might not need date-fns

January 9, 2018 - TLDR; Day.js is smaller than Date-FNS, and the author likes its API beter ...

GitHub

github.com › you-dont-need › You-Dont-Need-Momentjs › blob › master › README.md

You-Dont-Need-Momentjs/README.md at master · you-dont-need/You-Dont-Need-Momentjs

If you are not using timezone but only a few simple functions from moment.js, this might bloat your app, and therefore is considered overkill. dayjs has a smaller core and has very similar APIs so it makes it very easy to migrate. date-fns enables ...

Author you-dont-need

GitHub

github.com › shadcn-ui › ui › discussions › 4817

date-fns vs dayjs? · shadcn-ui/ui · Discussion #4817

According to npm the unpacked size for each is, 22.2 MB for date-fns and 670 kB for dayjs. date-fns exports one function per file, this structure makes it tree-shakable, and bundlers will only include the code you import resulting in a much ...

Author shadcn-ui

How-To

how-to.dev › dayjs-vs-date-fns

Day.js vs date-fns

August 7, 2021 - In this article, I'll summarize Day.js & date-fns comparison, that concludes this series. Introduction Based on what I've learned in the first round of articles, Day.js & date-fns look the most interesting. date-fns In the first test, where I used o...

reddit.com › r/reactnative › any recommendations for date formatting library for react native?

r/reactnative on Reddit: Any recommendations for date formatting library for react native?

January 30, 2025 -

Looks like moment has been deprecated and I have been trying to use dayjs but I have issues getting the correct dates with it and seems like a lot of others are too: https://github.com/iamkun/dayjs/issues/1377

So I was wondering if anyone had a recommendation for another library?

Top answer

1 of 6

date-fns has been my goto for a bit

2 of 6

Dayjs is really the standard these days, unless I’ve missed something. It may be worth utilizing chatgpt or another llm to get your response and ask it to explain how. It’s really good at a job like this

DEV Community

dev.to › dmtrkovalenko › you-might-not-need-date-fns-23f7

You might not need date-fns - DEV Community

May 10, 2021 - Date-fns is not lightweight library for date/time management. There are underrated alternatives – e.g. Dayjs is much smaller when using around the same functionality.

reddit.com › r/node › js dates are about to be fixed

r/node on Reddit: JS Dates Are About to Be Fixed

March 27, 2024 - DayJS is a decent drop-in replacement for Moment, although you'll have some growing pains thanks to the transition to being immutable. If you're starting from scratch, I'd consider a Temporal polyfill or date-fns.

LibHunt

libhunt.com › compare-date-fns-vs-dayjs

date-fns vs dayjs - compare differences and reviews? | LibHunt

It was first released in 2014. date-fns works in both the browser and Node.js. It also supports working with TypeScript and Flow (the JavaScript typechecker). date-fns is very popular, with 33.4K stars on GitHub and 20.5M npm weekly downloads, at the time of writing. Posts with mentions or reviews of dayjs.