diff --git a/eleventy.config.cjs b/eleventy.config.cjs
index 4b38bc2..224e813 100644
--- a/eleventy.config.cjs
+++ b/eleventy.config.cjs
@@ -20,4 +20,8 @@ module.exports = function(eleventyConfig){
 	eleventyConfig.addDataExtension("yml, yaml",
 		contents => require('js-yaml').load(contents)
 	)
+
+	if(process.env.NODE_ENV==="production"){
+		eleventyConfig.addGlobalData('date', 'git Last Modified');
+	}
 }