Start of main content
Returns the human-readable format of the given number of milliseconds.
- Divide
mswith the appropriate values to obtain the appropriate values forday,hour,minute,secondandmillisecond. - Use
Object.entries()withArray.prototype.filter()to keep only non-zero values. - Use
Array.prototype.map()to create the string for each value, pluralizing appropriately. - Use
Array.prototype.join()to combine the values into a string.
const formatDuration = ms => {
if (ms < 0) ms = -ms;
const time = {
day: Math.floor(ms / 86400000),
hour: Math.floor(ms / 3600000) % 24,
minute: Math.floor(ms / 60000) % 60,
second: Math.floor(ms / 1000) % 60,
millisecond: Math.floor(ms) % 1000
};
return Object.entries(time)
.filter(val => val[1] !== 0)
.map(([key, val]) => `${val} ${key}${val !== 1 ? 's' : ''}`)
.join(', ');
};formatDuration(1001); // '1 second, 1 millisecond'
formatDuration(34325055574);
// '397 days, 6 hours, 44 minutes, 15 seconds, 574 milliseconds'Recommended snippets
Number of seconds to ISO format
JavaScript, Date
Returns the ISO format of the given number of seconds.
String is ISO formatted date
JavaScript, Date
Checks if the given string is valid in the simplified extended ISO format (ISO 8601).
Date to ISO format with timezone
JavaScript, Date
Converts a date to extended ISO format (ISO 8601), including timezone offset.