diff --git a/library/include/mobilisis/tariff_business_hours.h b/library/include/mobilisis/tariff_business_hours.h
index 305e25c..0d82e33 100644
--- a/library/include/mobilisis/tariff_business_hours.h
+++ b/library/include/mobilisis/tariff_business_hours.h
@@ -6,20 +6,23 @@
 /// </summary>
 ///
 
-#define _MON_                           (1ULL << 8)
-#define _TUE_                           (1ULL << 9)
-#define _WED_                           (1ULL << 10)
-#define _THU_                           (1ULL << 11)
-#define _FRI_                           (1ULL << 12)
-#define _SAT_                           (1ULL << 13)
-#define _SUN_                           (1ULL << 14)
+#include <Qt>
+
+#define _NO_RESTRICTION_24_7_           (uint64_t)(0ULL)
+#define _MON_                           (uint64_t)(1ULL << 8)
+#define _TUE_                           (uint64_t)(1ULL << 9)
+#define _WED_                           (uint64_t)(1ULL << 10)
+#define _THU_                           (uint64_t)(1ULL << 11)
+#define _FRI_                           (uint64_t)(1ULL << 12)
+#define _SAT_                           (uint64_t)(1ULL << 13)
+#define _SUN_                           (uint64_t)(1ULL << 14)
 #define _WEEK_DAYS_                     ((_MON_|_TUE_|_WED_|_THU_|_FRI_))
 #define _WORKING_DAYS_                  ((_MON_|_TUE_|_WED_|_THU_|_FRI_|_SAT_))
 #define _ALL_DAYS_                      ((_MON_|_TUE_|_WED_|_THU_|_FRI_|_SAT_|_SUN_))
-#define _OFFICIAL_HOLIDAY_              (1ULL << 15)
-#define _ONLY_WEEKEND                   ((_SAT_|_SUN_))
-#define _ONLY_OPEN_FOR_BUSINESS_DAYS    (1ULL << 16)    /* verkaufsoffen */
-#define _NOT_DEFINED                    (~0ULL)
+#define _OFFICIAL_HOLIDAY_              (uint64_t)(1ULL << 15)
+#define _ONLY_WEEKEND_                  ((_SAT_|_SUN_))
+#define _ONLY_OPEN_FOR_BUSINESS_DAYS_   (uint64_t)(1ULL << 16)    /* verkaufsoffen */
+#define _NOT_DEFINED_                   (uint64_t)(~0ULL)
 
 enum BusinessHours : std::uint64_t
 {
@@ -37,7 +40,7 @@ enum BusinessHours : std::uint64_t
     NoBusinessHoursDefined      = 255,
 
     // new 12.04.2024
-    NO_RESTRICTION_24_7 = 0,
+    NO_RESTRICTION_24_7 = _NO_RESTRICTION_24_7_,
     MON = _MON_,
     TUE = _TUE_,
     WED = _WED_,
@@ -49,11 +52,26 @@ enum BusinessHours : std::uint64_t
     WORKING_DAYS = _WORKING_DAYS_,
     ALL_DAYS = _ALL_DAYS_,
     OFFICIAL_HOLIDAY = _OFFICIAL_HOLIDAY_,
-    ONLY_WEEKEND = _ONLY_WEEKEND,
-    ONLY_OPEN_FOR_BUSINESS_DAYS = _ONLY_OPEN_FOR_BUSINESS_DAYS,
-    NOT_DEFINED = _NOT_DEFINED
+    ONLY_WEEKEND = _ONLY_WEEKEND_,
+    ONLY_OPEN_FOR_BUSINESS_DAYS = _ONLY_OPEN_FOR_BUSINESS_DAYS_,
+    NOT_DEFINED = _NOT_DEFINED_
 };
 
+#if 0
+static bool business(uint64_t businessHours, QDateTime &const dt) {
+    switch (dayOfWeek) {
+    case Qt::Monday:
+        (businessHours & _MON_) == _MON_;
+    case Qt::Tuesday:
+    case Qt::Wednesday:
+    case Qt::Thursday:
+    case Qt::Saturday:
+    case Qt::Sunday:
+    }
+
+}
+#endif
+
 struct BusinessHours_struct {
     BusinessHours bh;
 };