diff --git a/library/include/mobilisis/atb_time.h b/library/include/mobilisis/atb_time.h
new file mode 100644
index 0000000..c0b03be
--- /dev/null
+++ b/library/include/mobilisis/atb_time.h
@@ -0,0 +1,58 @@
+#ifndef ATB_TIME_H_INCLUDED
+#define ATB_TIME_H_INCLUDED
+
+#include <QDateTime>
+
+class ATBTime {
+    QDateTime const m_end;
+    mutable QDateTime m_time;
+
+public:
+    explicit ATBTime();
+    explicit ATBTime(int h, int m, int s = 0, int ms = 0);
+
+    int hour() const { return m_time.time().hour(); }
+    int minute() const { return m_time.time().minute(); }
+    int second() const { return m_time.time().second(); }
+    int msec() const { return m_time.time().msec(); }
+
+    int secsTo(QTime t) const { return m_time.time().secsTo(t); }
+    int msecsTo(QTime t) const { return m_time.time().msecsTo(t); }
+
+    bool setHMS(int h, int m, int s, int ms = 0);
+
+    bool isNull() const { return m_time.time().isNull(); }
+    bool isValid() const { return m_time.time().isValid(); }
+
+
+    QTime addMSecs(int ms) const;
+    QTime addMSecs(int ms);
+
+    QTime addSecs(int s) const;
+    QTime addSecs(int s);
+
+    int msecsSinceStartOfDay() const;
+    QString toString(Qt::DateFormat format = Qt::TextDate) const;
+
+
+    static bool isValid(int h, int m, int s, int ms = 0);
+
+    static QTime currentTime() { return QDateTime::currentDateTime().time(); }
+
+    static constexpr QTime fromMSecsSinceStartOfDay(int msecs);
+
+    static QTime fromString(QString const &string, Qt::DateFormat format = Qt::TextDate);
+    static QTime fromString(QString const &string, const QString &format);
+
+    friend bool operator!=(const ATBTime &lhs, const ATBTime &rhs) noexcept;
+    friend bool operator<(const ATBTime &lhs, const ATBTime &rhs) noexcept;
+    friend bool operator<=(const ATBTime &lhs, const ATBTime &rhs) noexcept;
+    friend bool operator<(const ATBTime &lhs, const ATBTime &rhs) noexcept;
+    friend bool operator>(const ATBTime &lhs, const ATBTime &rhs) noexcept;
+    friend bool operator==(const ATBTime &lhs, const ATBTime &rhs) noexcept;
+    friend QDataStream &operator<<(QDataStream &out, ATBTime time);
+    friend QDataStream &operator>>(QDataStream &in, ATBTime &time);
+};
+
+
+#endif // ATB_TIME_H_INCLUDED
diff --git a/library/src/atb_time.cpp b/library/src/atb_time.cpp
new file mode 100644
index 0000000..a040d58
--- /dev/null
+++ b/library/src/atb_time.cpp
@@ -0,0 +1,103 @@
+#include "atb_time.h"
+
+
+ATBTime::ATBTime()
+    : m_end(QDateTime::fromString("1970-01-02T00:00:00"))
+    , m_time(QDateTime::fromString("1970-01-01T00:00:00")) {
+}
+
+ATBTime::ATBTime(int h, int m, int s, int ms)
+    : m_end(QDateTime::fromString("1970-01-02T00:00:00"))
+    , m_time(QDateTime::fromString("1970-01-01T00:00:00")) {
+
+    QTime t(h, m, s, ms);
+    m_time.setTime(t);
+}
+
+QTime ATBTime::addMSecs(int ms) const {
+    return m_time.time().addMSecs(ms);
+}
+
+QTime ATBTime::addMSecs(int ms)  {
+    QTime t = m_time.time();
+    t = t.addMSecs(ms);
+    m_time.setTime(t);
+    return t;
+}
+
+QTime ATBTime::addSecs(int s) const {
+    return m_time.time().addSecs(s);
+}
+
+QTime ATBTime::addSecs(int s)  {
+    QTime t = m_time.time();
+    t = t.addSecs(s);
+    m_time.setTime(t);
+    return t;
+}
+
+constexpr QTime ATBTime::fromMSecsSinceStartOfDay(int msecs) {
+    return QTime::fromMSecsSinceStartOfDay(msecs);
+}
+
+QTime ATBTime::fromString(QString const &string, Qt::DateFormat format) {
+    return QTime::fromString(string, format);
+}
+
+QTime ATBTime::fromString(QString const &string, QString const &format) {
+    return QTime::fromString(string, format);
+}
+
+bool ATBTime::isValid(int h, int m, int s, int ms) {
+    return QTime(h, m, s, ms).isValid();
+}
+
+int ATBTime::msecsSinceStartOfDay() const {
+    return m_time.time().msecsSinceStartOfDay();
+}
+
+bool ATBTime::setHMS(int h, int m, int s, int ms) {
+    if (isValid(h, m, s, ms)) {
+        QTime t(h, m, s, ms);
+        m_time.setTime(t);
+        return true;
+    }
+    return false;
+}
+
+QString ATBTime::toString(Qt::DateFormat format) const {
+    return m_time.time().toString(format);
+}
+
+bool operator!=(const ATBTime &lhs, const ATBTime &rhs) noexcept {
+    return lhs.m_time.time() != rhs.m_time.time();
+}
+
+bool operator<=(const ATBTime &lhs, const ATBTime &rhs) noexcept {
+    return lhs.m_time.time() <= rhs.m_time.time();
+
+}
+
+bool operator<(const ATBTime &lhs, const ATBTime &rhs) noexcept {
+    return lhs.m_time.time() < rhs.m_time.time();
+}
+
+bool operator>(const ATBTime &lhs, const ATBTime &rhs) noexcept {
+    return lhs.m_time.time() > rhs.m_time.time();
+}
+
+bool operator==(const ATBTime &lhs, const ATBTime &rhs) noexcept {
+    return lhs.m_time.time() == rhs.m_time.time();
+}
+
+QDataStream &operator<<(QDataStream &out, ATBTime time) {
+    out << time.m_time.time();
+    return out;
+}
+
+QDataStream &operator>>(QDataStream &in, ATBTime &time) {
+    QTime t;
+    in >> t;
+    time.m_time.setTime(t);
+    return in;
+}