diff --git a/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java b/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java
index 5d24b24..a0e5653 100644
--- a/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java
+++ b/src/fr/devinsy/statoolinfos/checker/PropertyChecker.java
@@ -39,7 +39,7 @@ public class PropertyChecker
     public static final String BOM = "\ufeff";
     public static final String COMMENT = "^#.*$";
     public static final String STRING = "^.+$";
-    public static final String DATETIME = "\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}(:\\d{2}([\\.,]\\d+)?)?([+-]\\d\\d:\\d\\d)?";
+    public static final String DATETIME = "\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}(:\\d{2}([\\.,]\\d+)?)?([+-]\\d\\d:\\d\\d|Z)?";
     public static final String DATE = "^(\\d{4}-\\d{2}-\\d{2}|\\d{2}/\\d{2}/\\d{4}|\\d{2}/\\d{4})";
     public static final String URL = "^https?://[\\w-_\\.]+(\\.\\w+)+(:\\d+)?(/.*)?$";
     public static final String EMAIL = "^.*@.*$";