timeago
jQuery plugin that makes it easy to support automatically updating fuzzy timestamps (e.g. "4 minutes ago" or "about 1 day ago").
metascraper
A library to easily scrape metadata from an article on the web using Open Graph, JSON+LD, regular HTML metadata, and series of fallbacks.
epoch-timeago
Convert Unix time to a relative time string e.g., "4 hours ago".
timelapsed
timelapsed is a NodeJs module that makes it easy to support fuzzy timestamps (e.g. "2min, 2 hrs ago, 4 minutes ago" or "yesterday")
semantic-network
A utility library for manipulating a list of links that form a semantic interface to a network of resources.