diff --git a/library/include/mobilisis/weekdays.h b/library/include/mobilisis/weekdays.h
index 3911cf5..e5187e9 100644
--- a/library/include/mobilisis/weekdays.h
+++ b/library/include/mobilisis/weekdays.h
@@ -1,10 +1,57 @@
-#pragma once
-#include <string>
+#include "tariff_settings.h"
+#include "tariff_carryover_settings.h"
 
-class ATBWeekDays
-{
-public:
-	int pdiw_id;
-	std::string pdiw_label;
-	int pdiw_index;
-};
\ No newline at end of file
+#include <QString>
+#include <Qt>
+#include <QDate>
+
+struct ATBWeekDay {
+    enum WeekDayType {USUAL_WEEKDAY=0, HOLIDAY=1};
+
+    Qt::DayOfWeek m_id;
+    QString m_name;
+    QDate m_date;
+    WeekDayType m_type;
+    ATBTariffSettings m_tariffSettings;
+    ATBTariffCarryOverSettings m_tariffCarryOverSettings;
+
+    explicit ATBWeekDay()
+        : m_id(Qt::Monday)
+        , m_name("")
+        , m_date(QDate())
+        , m_type(USUAL_WEEKDAY)
+        , m_tariffSettings()
+        , m_tariffCarryOverSettings() {}
+
+    explicit ATBWeekDay(Qt::DayOfWeek id, QString const &name, WeekDayType type,
+                        QDate const &date,
+                        ATBTariffSettings const &tariffSettings,
+                        ATBTariffCarryOverSettings const &tariffCarryOverSettings)
+        : m_id(id)
+        , m_name(name)
+        , m_date(date)
+        , m_type(type)
+        , m_tariffSettings(tariffSettings)
+        , m_tariffCarryOverSettings(tariffCarryOverSettings) {}
+
+    ATBTariffCarryOverSettings &getTariffCarryOverSettings() { return m_tariffCarryOverSettings; }
+    ATBTariffCarryOverSettings const &getTariffCarryOverSettings() const { return m_tariffCarryOverSettings; }
+
+    ATBTariffSettings &getTariffSettings() { return m_tariffSettings; }
+    ATBTariffSettings const &getTariffSettings() const { return m_tariffSettings; }
+
+    friend QDebug operator<<(QDebug debug, ATBWeekDay const &wd) {
+        QDebugStateSaver saver(debug);
+
+        debug.nospace()
+            << "                       id: " << (int)wd.m_id << "\n"
+            << "                     name: " << wd.m_name << "\n"
+            << "                     type: " << (int)wd.m_type << "\n\n"
+            << "          tariff settings: " << "\n"
+                                             << wd.m_tariffSettings << "\n"
+            << "tariff carryover settings: " << "\n"
+                                             << wd.m_tariffCarryOverSettings << endl;
+
+        return debug;
+    }
+};