Index: src/utils/datetime.h
===================================================================
--- src/utils/datetime.h
+++ src/utils/datetime.h
@@ -31,7 +31,6 @@
 
 namespace DateTime
 {
-    QDateTime currentDateTime();
     QDate currentDate();
 }
 
Index: src/utils/datetime.cpp
===================================================================
--- src/utils/datetime.cpp
+++ src/utils/datetime.cpp
@@ -27,14 +27,6 @@
 
 using namespace Utils;
 
-QDateTime DateTime::currentDateTime()
-{
-    QByteArray overrideDatetime = qgetenv("ZANSHIN_OVERRIDE_DATETIME");
-    QDateTime customDateTime = QDateTime::fromString(QString::fromLocal8Bit(overrideDatetime), Qt::ISODate);
-
-    return customDateTime.isValid() ? customDateTime : QDateTime::currentDateTime();
-}
-
 QDate DateTime::currentDate()
 {
     QByteArray overrideDate = qgetenv("ZANSHIN_OVERRIDE_DATE");
Index: tests/units/utils/datetimetest.cpp
===================================================================
--- tests/units/utils/datetimetest.cpp
+++ tests/units/utils/datetimetest.cpp
@@ -31,44 +31,6 @@
 {
     Q_OBJECT
 private slots:
-    void shouldNotOverrideCurrentDateTime()
-    {
-        // GIVEN
-        const auto todayDate = QDateTime::currentDateTime();
-
-        // WHEN
-        const QDateTime zanshinDate = DateTime::currentDateTime();
-
-        // THEN
-        QCOMPARE(zanshinDate.date(), todayDate.date());
-    }
-
-    void shouldOverrideCurrentDateTime()
-    {
-        // GIVEN
-        const QByteArray dateExpected = "2015-03-10";
-        qputenv("ZANSHIN_OVERRIDE_DATETIME", dateExpected);
-
-        // WHEN
-        const QDateTime zanshinDate = DateTime::currentDateTime();
-
-        // THEN
-        QCOMPARE(zanshinDate.date(), QDateTime::fromString(QString::fromLocal8Bit(dateExpected), Qt::ISODate).date());
-    }
-
-    void shouldNotOverrideCurrentDateTimeWhenInvalidDate()
-    {
-        // GIVEN
-        const QByteArray dateExpected = "Invalid!";
-        qputenv("ZANSHIN_OVERRIDE_DATETIME", dateExpected);
-
-        // WHEN
-        const QDateTime zanshinDate = DateTime::currentDateTime();
-
-        // THEN
-        QCOMPARE(zanshinDate.date(), QDateTime::currentDateTime().date());
-    }
-
     void shouldNotOverrideCurrentDate()
     {
         // GIVEN