diff --git a/src/apps.json b/src/apps.json
index b6662c0fe..75dcca140 100644
--- a/src/apps.json
+++ b/src/apps.json
@@ -2451,6 +2451,16 @@
       "script": "dataTables.*\\.js",
       "website": "http://datatables.net"
     },
+    "Day.js": {
+      "cats": [
+        59
+      ],
+      "icon": "Day.js.svg",
+      "js": {
+        "dayjs": ""
+      },
+      "website": "https://github.com/iamkun/dayjs"
+    },
     "Debian": {
       "cats": [
         28
diff --git a/src/icons/Day.js.svg b/src/icons/Day.js.svg
new file mode 100644
index 000000000..6ceade70d
--- /dev/null
+++ b/src/icons/Day.js.svg
@@ -0,0 +1 @@
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