When you write the content for an "About Us" page (et al), it might contain phrases like, "We have been working together for x years." ...or... "I have x years experience in..." Unfortunately, if you don't update these types of phrases every single year, they become outdated. Many people simply avoid these types of texts for just this reason. But, you don't have to anymore...
"Years Since" is a simple, lightweight plugin that solves this problem with a single shortcode that can be used in posts, pages, widgets, or templates. No complicated admin screens, config settings, or lengthy manuals to read.
We site owners take measures to auto-update our footer copyright dates, but we tend to overlook this same shortcoming in our actual content – or we jump through linguistic hoops to avoid using an actual number. No more – the Years Since plugin is your solution!
https://wordpress.org/plugins/years-since/