diff --git a/xyz/openbmc_project/ScheduledTime.errors.yaml b/xyz/openbmc_project/ScheduledTime.errors.yaml
new file mode 100644
index 0000000..30d238d
--- /dev/null
+++ b/xyz/openbmc_project/ScheduledTime.errors.yaml
@@ -0,0 +1,2 @@
+- name: InvalidTime
+  description: Scheduled time is in the past