1# ms 2 3[](https://travis-ci.org/zeit/ms) 4[](https://zeit.chat/) 5 6Use this package to easily convert various time formats to milliseconds. 7 8## Examples 9 10```js 11ms('2 days') // 172800000 12ms('1d') // 86400000 13ms('10h') // 36000000 14ms('2.5 hrs') // 9000000 15ms('2h') // 7200000 16ms('1m') // 60000 17ms('5s') // 5000 18ms('1y') // 31557600000 19ms('100') // 100 20ms('-3 days') // -259200000 21ms('-1h') // -3600000 22ms('-200') // -200 23``` 24 25### Convert from Milliseconds 26 27```js 28ms(60000) // "1m" 29ms(2 * 60000) // "2m" 30ms(-3 * 60000) // "-3m" 31ms(ms('10 hours')) // "10h" 32``` 33 34### Time Format Written-Out 35 36```js 37ms(60000, { long: true }) // "1 minute" 38ms(2 * 60000, { long: true }) // "2 minutes" 39ms(-3 * 60000, { long: true }) // "-3 minutes" 40ms(ms('10 hours'), { long: true }) // "10 hours" 41``` 42 43## Features 44 45- Works both in [Node.js](https://nodejs.org) and in the browser 46- If a number is supplied to `ms`, a string with a unit is returned 47- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`) 48- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned 49 50## Related Packages 51 52- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time. 53 54## Caught a Bug? 55 561. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device 572. Link the package to the global module directory: `npm link` 583. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms! 59 60As always, you can run the tests using: `npm test` 61
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