diff --git a/item_delegates/DateTimeAsSecsSinceEpochDelegate.hpp b/item_delegates/DateTimeAsSecsSinceEpochDelegate.hpp
index 66d3b6769..5b7f76eb8 100644
--- a/item_delegates/DateTimeAsSecsSinceEpochDelegate.hpp
+++ b/item_delegates/DateTimeAsSecsSinceEpochDelegate.hpp
@@ -28,7 +28,7 @@ public:
 
   static QDateTime to_date_time (QVariant const& value)
   {
-    return QDateTime::fromMSecsSinceEpoch (value.toULongLong () * 1000ull);
+    return QDateTime::fromMSecsSinceEpoch (value.toULongLong () * 1000ull, Qt::UTC);
   }
 
   QString displayText (QVariant const& value, QLocale const& locale) const override
diff --git a/models/CabrilloLog.cpp b/models/CabrilloLog.cpp
index 3e218d643..055f8ae07 100644
--- a/models/CabrilloLog.cpp
+++ b/models/CabrilloLog.cpp
@@ -128,7 +128,7 @@ void CabrilloLog::export_qsos (QTextStream& stream) const
       frequency = frequency > 50000000ull ? frequency / 1000ull : frequency;
       stream << QString {"QSO: %1 DG %2 %3 %4 %5 %6\n"}
                       .arg (frequency, 5)
-                      .arg (QDateTime::fromMSecsSinceEpoch (m_->export_query_.value (when_index).toULongLong () * 1000ull).toString ("yyyy-MM-dd hhmm"))
+                         .arg (QDateTime::fromMSecsSinceEpoch (m_->export_query_.value (when_index).toULongLong () * 1000ull, Qt::UTC).toString ("yyyy-MM-dd hhmm"))
                       .arg (my_call, -12)
                       .arg (m_->export_query_.value (sent_index).toString (), -13)
                       .arg (m_->export_query_.value (call_index).toString (), -12)
diff --git a/widgets/astro.cpp b/widgets/astro.cpp
index c0e2b1fe3..4ee55da4a 100644
--- a/widgets/astro.cpp
+++ b/widgets/astro.cpp
@@ -213,7 +213,7 @@ auto Astro::astroUpdate(QDateTime const& t, QString const& mygrid, QString const
         // we do the next period if we calculate just before it starts
         auto sec_since_epoch = t.toMSecsSinceEpoch () / 1000 + 2;
         auto target_sec = sec_since_epoch - sec_since_epoch % TR_period + TR_period / 2;
-        auto target_date_time = QDateTime::fromMSecsSinceEpoch (target_sec * 1000, QTimeZone::utc ());
+        auto target_date_time = QDateTime::fromMSecsSinceEpoch (target_sec * 1000, Qt::UTC);
         QString date {target_date_time.date().toString("yyyy MMM dd").trimmed ()};
         QString utc {target_date_time.time().toString().trimmed ()};
         int nyear {target_date_time.date().year()};