diff --git a/git/git_branch_age.nu b/git/git_branch_age.nu
index 43dd136..fcd477e 100755
--- a/git/git_branch_age.nu
+++ b/git/git_branch_age.nu
@@ -1,6 +1,15 @@
 # Creates a table listing the branches of a git repository and the day of the last commit
-git branch | lines | str substring 2, | wrap name | insert "last commit" {
-    get name | each {
-        git show $it --no-patch --format=%as
-    }
-} | sort-by "last commit"
+def "git age" [] {
+    git branch |
+    lines |
+    str substring 2, |
+    wrap name |
+    insert date {
+        get name |
+        each {
+            git show $it --no-patch --format=%as | str to-datetime
+        }
+    } |
+    sort-by date
+}
+