diff --git a/grmi/Date.go b/grmi/Date.go
index 48c0248..7e1ae34 100644
--- a/grmi/Date.go
+++ b/grmi/Date.go
@@ -19,6 +19,10 @@ func (self *Date) UnmarshalJSON(data []byte) error {
 	if err != nil {
 		return err
 	}
+	if jsonString == "0001-01-01" {
+		*self = Date(time.Time{})
+		return nil
+	}
 	result, err := time.ParseInLocation(URLDateFormat, jsonString, utils.TimezoneLocation)
 	if err != nil {
 		return err
diff --git a/grmi/DateTime.go b/grmi/DateTime.go
index ca1ead5..01d0594 100644
--- a/grmi/DateTime.go
+++ b/grmi/DateTime.go
@@ -1,9 +1,9 @@
 package grmi
 
 import (
+	"LAPP_ACURA_MOM_BACKEND/utils"
 	"fmt"
 	json "github.com/json-iterator/go"
-	"LAPP_ACURA_MOM_BACKEND/utils"
 	"time"
 )
 
@@ -19,6 +19,10 @@ func (self *DateTime) UnmarshalJSON(data []byte) error {
 	if err != nil {
 		return err
 	}
+	if jsonString == "0001-01-01 00:00:00" {
+		*self = DateTime(time.Time{})
+		return nil
+	}
 	result, err := time.ParseInLocation(URLDateTimeFormat, jsonString, utils.TimezoneLocation)
 	if err != nil {
 		return err