s-ago

This is the smallest, fully unit tested module to convert Date objects into human readable relative timestamps, such as '4 minutes ago', 'yesterday', 'tomorrow', or 'in 3 months'. All in 22 lines of TypeScript.

You can optionally specify the maximum unit (eg. hour, day, week) so instead of outputting '2 weeks ago' you will see '14 days ago'.

Usage

var ago = require('s-ago');
 
var now = new Date();
var yesterday = new Date(now.getTime() - (24 * 60 * 60 * 1000));
var hoursAgo = new Date(now.getTime() - (6 * 60 * 60 * 1000));
var yesterday = new Date(now.getTime() - (24 * 60 * 60 * 1000));
var tomorrow = new Date(now.getTime() + (6 * 60 * 60 * 1000));
var inSixHours = new Date(now.getTime() + (6 * 60 * 60 * 1000));
var inTwoWeeks = new Date(now.getTime() + (2 * 7 * 24 * 60 * 60 * 1000));
 
// present
ago(now); // 'just now'
 
// past
ago(yesterday); // 'yesterday'
ago(hoursAgo); // '6 hours ago'
 
// future
ago(inSixHours); // 'in 6 hours'
ago(tomorrow); // 'tomorrow'
 
// max unit
ago(inTwoWeeks);  // 'in 2 weeks'
ago(inTwoWeeks, 'day'); // 'in 14 days'

Output is as follows:

Time	Output	Future output
Less than 1 minute	just now	just now
1-2 minutes	a minute ago	in a minute
2-46 minutes	# minutes ago	in # minutes
46 minutes - 2 hours	an hour ago	in an hour
2-20 hours	# hours ago	in # hours
20-48 hours	yesterday	tomorrow
2-6 days	last week	in a week
7-28 days	# weeks ago	in # weeks
28 days - 2 months	last month	in a month
2-11 months	# months ago	in # months
11-23 months	last year	in a year
2+ years	# years ago	in # years