pretty-ms

Convert milliseconds to a human readable string: 1337000000 → 15d 11h 23m 20s

Install

$ npm install pretty-ms

Usage

const prettyMs = require('pretty-ms');
 
prettyMs(1337000000);
//=> '15d 11h 23m 20s'
 
prettyMs(1337);
//=> '1.3s'
 
prettyMs(133);
//=> '133ms'
 
// `compact` option
prettyMs(1337, {compact: true});
//=> '~1s'
 
// `verbose` option
prettyMs(1335669000, {verbose: true});
//=> '15 days 11 hours 1 minute 9 seconds'
 
// `formatSubMs` option
prettyMs(100.400080, {formatSubMs: true})
//=> '100ms 400µs 80ns'
 
// Can be useful for time durations
prettyMs(new Date(2014, 0, 1, 10, 40) - new Date(2014, 0, 1, 10, 5))
//=> '35m'

API

prettyMs(input, [options])

input

Type: number

Milliseconds to humanize.

options

Type: Object

secDecimalDigits

Type: number
Default: 1

Number of digits to appear after the seconds decimal point.

msDecimalDigits

Type: number
Default: 0

Number of digits to appear after the milliseconds decimal point.

Useful in combination with process.hrtime().

keepDecimalsOnWholeSeconds

Type: boolean
Default: false

Keep milliseconds on whole seconds: 13s → 13.0s.

Useful when you are showing a number of seconds spent on an operation and don't want the width of the output to change when hitting a whole number.

compact

Type: boolean
Default: false

Only show the first unit: 1h 10m → ~1h. Also ensures that msDecimalDigits and secDecimalDigits are both set to 0.

unitCount

Type: number
Default: Infinity

Number of units to show. Setting compact to true overrides this option.

verbose

Type: boolean
Default: false

Use full-length units: 5h 1m 45s → 5 hours 1 minute 45 seconds

separateMs

Type: boolean
Default: false

Show milliseconds separately. This means they won't be included in the decimal part of the seconds.

formatSubMs

Type: boolean
Default: false

Show microseconds and nanoseconds.

Related

• pretty-ms-cli - CLI for this module
• parse-ms - Parse milliseconds into an object
• to-milliseconds - Convert an object of time properties to milliseconds

License

MIT © Sindre Sorhus