diff --git a/ulid.zig b/ulid.zig
index 1dd4546ab0c1dd01456ba1a7aa351eae02a10cb7..84fdc64f0b3f566ce0649abf9b0d6413fe398e90 100644
--- a/ulid.zig
+++ b/ulid.zig
@@ -75,4 +75,8 @@ pub const ULID = struct {
     pub fn stringifyJson(self: ULID, writer: anytype, options: std.json.Stringify.Options, json: type) !void {
         return json.stringify(writer, &self.bytes(), options);
     }
+
+    pub fn createdAt(self: ULID, epoch: u64) time.DateTime {
+        return .initUnixMs(epoch + self.timestamp);
+    }
 };