diff --git a/src/Cmixin/Holidays/id-national.php b/src/Cmixin/Holidays/id-national.php
new file mode 100644
index 0000000..2188b07
--- /dev/null
+++ b/src/Cmixin/Holidays/id-national.php
@@ -0,0 +1,9 @@
+<?php
+
+return [
+    'new-year'                                     => '01-01',
+    'may-day'                                      => '05-01',
+    'pancasila-day'                                => '06-01',
+    'independence-day'                             => '08-17',
+    'christmas'                                    => '12-25',
+];