# Is moment ESM-only? Can you require() it?

> moment@2.30.1 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Parse, validate, manipulate, and display dates

Last verified Sep 9, 2026 against moment@2.30.1.

moment ships CommonJS only. require("moment") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js *. import "moment" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

## What to do

1. require("moment") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js *.
2. From ES modules use the default import: import moment from "moment"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: types are bundled; install nothing extra.

## Facts

- Latest: 2.30.1 (Dec 27, 2023)
- Module format: CommonJS
- Last CommonJS version: 2.30.1
- TypeScript types: bundled
- Node engines: *
- Weekly downloads: 31.5M
- License: MIT

## Runtime test results for moment@2.30.1

Installed and executed on Sep 9, 2026 with require("moment") from a CommonJS file and import "moment" from an ES module.

| Runtime | require("moment") | import "moment" |
|---|---|---|
| Node.js 18 | works | works |
| Node.js 20 | works | works |
| Node.js 22 | works | works |
| Node.js 24 | works | works |
| Node.js 26 | works | works |
| Bun 1.4.0 | works | works |

## How to import moment

ES modules:

```js
import moment from "moment";
```

CommonJS:

```js
const moment = require("moment");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (76 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 2.1.0 – 2.30.1 | CommonJS | Jul 7, 2013 |

## Frequently asked

**Is moment ESM-only?**

moment@2.30.1 is a CommonJS package. moment ships CommonJS only. require("moment") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js *. import "moment" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

**Can I import moment with ES module syntax?**

Yes. import moment from "moment" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

**Does moment work in Bun?**

Yes. import "moment" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does moment ship TypeScript types?**

Yes. moment bundles its own type declarations; no @types package is needed.

## Links

- [moment on npm](https://www.npmjs.com/package/moment)
- [Source repository](https://github.com/moment/moment)
- [HTML version](https://canirequire.com/package/moment/)
- [JSON version](https://canirequire.com/package/moment.json)

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