diff --git a/.eleventy.js b/.eleventy.js
index 0a80f32..68732e8 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -15,6 +15,8 @@ module.exports = function (eleventyConfig) {
     "node_modules/simpledotcss/simple.css": "css/simple.css",
   });
 
+  eleventyConfig.addFilter("stringToDate", function (value) {
+    return new Date(value);
   });
   eleventyConfig.addFilter("formatDatetimeForHumans", function (value) {
     const dt = new Date(value);