Duration - RelativeTimeFormat

A simple browser / node module that leverages Intl.RelativeTimeFormat to print out localized relative durations:

const Duration = require('duration-relativetimeformat');
const duree = new Duration('fr');

console.log(duree.format(Date.now() - 10 * Duration.minute));
> il y a 10 minutes

constructor(lang, { numeric, style, localeMatcher })

Only lang is required.

format(to, from = now())

where to and from are either dates, timestamps, or strings.

examples of results

Non-numeric dates depend on the current date:

• this minute, this hour
• yesterday, today, tomorrow
• last week, next week
• last month, next month
• last year, next year

Otherwise numeric dates are rounded as much as possible, to avoid things like

• 5 seconds (prefer now)
• 35 seconds (prefer this minute or in 1 minute)
• 28 hours (prefer 1 day)
• 400 minutes (prefer 4 hours)

etc...