diff --git a/server/guhcore.cpp b/server/guhcore.cpp
index 897c1ad2..9add12d0 100644
--- a/server/guhcore.cpp
+++ b/server/guhcore.cpp
@@ -462,11 +462,15 @@ void GuhCore::guhTimeout()
 {
     m_deviceManager->timeTick();
 
+    // TODO: evaluate special times
+
     // Minute based time -> only evaluate time based rules if the minute changed
     if (m_currentDateTime.time().minute() != QDateTime::currentDateTime().time().minute()) {
         qCDebug(dcApplication) << "Guh time changed" << QDateTime::currentDateTime().time().toString("hh:mm:ss");
         m_currentDateTime = QDateTime::currentDateTime();
 
+        // TODO: evaluate timeDescriptor based rules
+
     }
 
 }
diff --git a/server/jsonrpc/jsontypes.cpp b/server/jsonrpc/jsontypes.cpp
index b529abfe..691fcbc1 100644
--- a/server/jsonrpc/jsontypes.cpp
+++ b/server/jsonrpc/jsontypes.cpp
@@ -283,6 +283,8 @@ void JsonTypes::init()
     s_logEntry.insert("o:eventType", loggingEventTypeRef());
     s_logEntry.insert("o:errorCode", basicTypeToString(String));
 
+
+
     s_initialized = true;
 }
 
@@ -930,6 +932,9 @@ QString JsonTypes::basicTypeToString(const QVariant::Type &type)
     case QVariant::Color:
         return "Color";
         break;
+    case QVariant::Time:
+        return "Time";
+        break;
     default:
         return QVariant::typeToName(type);
         break;
@@ -1472,6 +1477,9 @@ QPair<bool, QString> JsonTypes::validateBasicType(const QVariant &variant)
     if (variant.canConvert(QVariant::Color) && QVariant(variant).convert(QVariant::Color)) {
         return report(true, "");
     }
+    if (variant.canConvert(QVariant::Time) && QVariant(variant).convert(QVariant::Time)) {
+        return report(true, "");
+    }
     return report(false, QString("Error validating basic type %1.").arg(variant.toString()));
 }
 
diff --git a/server/jsonrpc/jsontypes.h b/server/jsonrpc/jsontypes.h
index 88f52e55..4ae351d1 100644
--- a/server/jsonrpc/jsontypes.h
+++ b/server/jsonrpc/jsontypes.h
@@ -99,6 +99,7 @@ public:
         Bool,
         Variant,
         Color,
+        Time,
         Object
     };
 
diff --git a/server/time/calendaritem.cpp b/server/time/calendaritem.cpp
index e1aedea1..8b5c8ec8 100644
--- a/server/time/calendaritem.cpp
+++ b/server/time/calendaritem.cpp
@@ -22,9 +22,15 @@
 
 namespace guhserver {
 
-CalendarItem::CalendarItem(const QTime startTime, const QTime duration) :
+CalendarItem::CalendarItem()
+{
+
+}
+
+CalendarItem::CalendarItem(const QTime &startTime, const QTime &duration, const RepeatingOption &repeatingOption) :
     m_startTime(startTime),
-    m_duration(duration)
+    m_duration(duration),
+    m_repeatingOption(repeatingOption)
 {
 
 }
@@ -39,4 +45,18 @@ QTime CalendarItem::duration() const
     return m_duration;
 }
 
+bool CalendarItem::isValid() const
+{
+    return !m_startTime.isNull() && !m_duration.isNull();
+}
+
+bool CalendarItem::evaluate(const QDateTime &dateTime) const
+{
+    Q_UNUSED(dateTime)
+
+    // TODO: evaluate the calendar item, return true if the current time matches the calendar item, otherwise false
+
+    return false;
+}
+
 }
diff --git a/server/time/calendaritem.h b/server/time/calendaritem.h
index 1df12187..aaed216a 100644
--- a/server/time/calendaritem.h
+++ b/server/time/calendaritem.h
@@ -23,20 +23,30 @@
 
 #include <QTime>
 
+#include "repeatingoption.h"
+
 namespace guhserver {
 
 class CalendarItem
 {
 public:
-    CalendarItem(const QTime startTime, const QTime duration);
+    CalendarItem();
+    CalendarItem(const QTime &startTime, const QTime &duration, const RepeatingOption &repeatingOption);
 
     QTime startTime() const;
     QTime duration() const;
 
+    RepeatingOption repeatingOption() const;
+
+    bool isValid() const;
+
+    bool evaluate(const QDateTime &dateTime) const;
+
 private:
     QTime m_startTime;
     QTime m_duration;
 
+    RepeatingOption m_repeatingOption;
 };
 
 }
diff --git a/server/time/repeatingoption.cpp b/server/time/repeatingoption.cpp
index e3e02bee..43ec7845 100644
--- a/server/time/repeatingoption.cpp
+++ b/server/time/repeatingoption.cpp
@@ -22,9 +22,38 @@
 
 namespace guhserver {
 
-RepeatingOption::RepeatingOption()
+RepeatingOption::RepeatingOption() :
+    m_mode(RepeatingModeNone)
 {
 
 }
 
+RepeatingOption::RepeatingOption(const RepeatingMode &mode, const QList<int> &weekDays, const QList<int> &monthDays) :
+    m_mode(mode),
+    m_weekDays(weekDays),
+    m_monthDays(monthDays)
+{
+
+}
+
+RepeatingOption::RepeatingMode RepeatingOption::mode() const
+{
+    return m_mode;
+}
+
+QList<int> RepeatingOption::weekDays() const
+{
+    return m_weekDays;
+}
+
+QList<int> RepeatingOption::monthDays() const
+{
+    return m_monthDays;
+}
+
+bool RepeatingOption::isEmtpy() const
+{
+    return m_mode == RepeatingModeNone && m_weekDays.isEmpty() && m_monthDays.isEmpty();
+}
+
 }
diff --git a/server/time/repeatingoption.h b/server/time/repeatingoption.h
index c32edd85..573cdd4d 100644
--- a/server/time/repeatingoption.h
+++ b/server/time/repeatingoption.h
@@ -21,6 +21,7 @@
 #ifndef REPEATINGOPTION_H
 #define REPEATINGOPTION_H
 
+#include <QList>
 #include <QMetaType>
 
 namespace guhserver {
@@ -40,9 +41,20 @@ public:
     };
 
     RepeatingOption();
+    RepeatingOption(const RepeatingMode &mode, const QList<int> &weekDays = QList<int>(), const QList<int> &monthDays = QList<int>());
 
+    RepeatingMode mode() const;
 
+    QList<int> weekDays() const;
+    QList<int> monthDays() const;
 
+    bool isEmtpy() const;
+
+private:
+    RepeatingMode m_mode;
+
+    QList<int> m_weekDays;
+    QList<int> m_monthDays;
 
 };
 
diff --git a/server/time/timedescriptor.cpp b/server/time/timedescriptor.cpp
index 1cbc6b33..ca1ea8a9 100644
--- a/server/time/timedescriptor.cpp
+++ b/server/time/timedescriptor.cpp
@@ -27,4 +27,29 @@ TimeDescriptor::TimeDescriptor()
 
 }
 
+QList<TimeEventItem> TimeDescriptor::timeEventItems() const
+{
+    return m_timeEventItems;
+}
+
+void TimeDescriptor::setTimeEventItems(const QList<TimeEventItem> &timeEventItems)
+{
+    m_timeEventItems = timeEventItems;
+}
+
+QList<CalendarItem> TimeDescriptor::calendarItems() const
+{
+    return m_calendarItems;
+}
+
+void TimeDescriptor::setCalendarItems(const QList<CalendarItem> &calendarItems)
+{
+    m_calendarItems = calendarItems;
+}
+
+bool TimeDescriptor::isValid() const
+{
+    return !m_timeEventItems.isEmpty() || !m_calendarItems.isEmpty();
+}
+
 }
diff --git a/server/time/timedescriptor.h b/server/time/timedescriptor.h
index 8bde04d9..b2cfd142 100644
--- a/server/time/timedescriptor.h
+++ b/server/time/timedescriptor.h
@@ -21,6 +21,9 @@
 #ifndef TIMEDESCRIPTOR_H
 #define TIMEDESCRIPTOR_H
 
+#include "timeeventitem.h"
+#include "calendaritem.h"
+
 namespace guhserver {
 
 class TimeDescriptor
@@ -28,6 +31,17 @@ class TimeDescriptor
 public:
     explicit TimeDescriptor();
 
+    QList<TimeEventItem> timeEventItems() const;
+    void setTimeEventItems(const QList<TimeEventItem> &timeEventItems);
+
+    QList<CalendarItem> calendarItems() const;
+    void setCalendarItems(const QList<CalendarItem> &calendarItems);
+
+    bool isValid() const;
+
+private:
+    QList<TimeEventItem> m_timeEventItems;
+    QList<CalendarItem> m_calendarItems;
 };
 
 }
diff --git a/server/time/timeeventitem.cpp b/server/time/timeeventitem.cpp
index feabba25..8883adb1 100644
--- a/server/time/timeeventitem.cpp
+++ b/server/time/timeeventitem.cpp
@@ -27,4 +27,39 @@ TimeEventItem::TimeEventItem()
 
 }
 
+QDateTime TimeEventItem::dateTime() const
+{
+    return m_dateTimer;
+}
+
+void TimeEventItem::setDateTimer(const int &timeStamp)
+{
+    m_dateTimer = QDateTime::fromTime_t(timeStamp);
+}
+
+QTime TimeEventItem::time() const
+{
+    return m_time;
+}
+
+void TimeEventItem::setTimer(const QTime &time)
+{
+    m_time = time;
+}
+
+RepeatingOption TimeEventItem::repatingOption() const
+{
+    return m_repeatingOption;
+}
+
+void TimeEventItem::setRepeatingOption(const RepeatingOption &repeatingOption)
+{
+    m_repeatingOption = repeatingOption;
+}
+
+bool TimeEventItem::isValid() const
+{
+    return !m_dateTimer.isNull() || !m_time.isNull();
+}
+
 }
diff --git a/server/time/timeeventitem.h b/server/time/timeeventitem.h
index c31770a8..74e36b47 100644
--- a/server/time/timeeventitem.h
+++ b/server/time/timeeventitem.h
@@ -21,6 +21,10 @@
 #ifndef TIMEEVENTITEM_H
 #define TIMEEVENTITEM_H
 
+#include <QDateTime>
+
+#include "repeatingoption.h"
+
 namespace guhserver {
 
 class TimeEventItem
@@ -28,6 +32,25 @@ class TimeEventItem
 public:
     TimeEventItem();
 
+    QDateTime dateTime() const;
+    void setDateTimer(const int &timeStamp);
+
+    QTime time() const;
+    void setTimer(const QTime &time);
+
+    RepeatingOption repatingOption() const;
+    void setRepeatingOption(const RepeatingOption &repeatingOption);
+
+    // TODO spectioalDayTime
+
+    bool isValid() const;
+
+private:
+    QDateTime m_dateTimer;
+    QTime m_time;
+
+    RepeatingOption m_repeatingOption;
+
 };
 
 }