diff --git a/src/murmur/Messages.cpp b/src/murmur/Messages.cpp
index c92e366b070..73b05994c8d 100644
--- a/src/murmur/Messages.cpp
+++ b/src/murmur/Messages.cpp
@@ -20,12 +20,13 @@
 #include "Version.h"
 #include "crypto/CryptState.h"
 
-#include <QtCore/QStack>
-#include <QtCore/QtEndian>
-
 #include <cassert>
 #include <unordered_map>
 
+#include <QtCore/QStack>
+#include <QtCore/QTimeZone>
+#include <QtCore/QtEndian>
+
 #include <tracy/Tracy.hpp>
 
 #define RATELIMIT(user)                   \
@@ -687,7 +688,11 @@ void Server::msgBanList(ServerUser *uSource, MumbleProto::BanList &msg) {
 			b.qsReason   = u8(be.reason());
 			if (be.has_start()) {
 				b.qdtStart = QDateTime::fromString(u8(be.start()), Qt::ISODate);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+				b.qdtStart.setTimeZone(QTimeZone::UTC);
+#else
 				b.qdtStart.setTimeSpec(Qt::UTC);
+#endif
 			} else {
 				b.qdtStart = QDateTime::currentDateTime().toUTC();
 			}
diff --git a/src/murmur/ServerDB.cpp b/src/murmur/ServerDB.cpp
index ffb655c2d64..4536641ea6c 100644
--- a/src/murmur/ServerDB.cpp
+++ b/src/murmur/ServerDB.cpp
@@ -3,14 +3,12 @@
 // that can be found in the LICENSE file at the root of the
 // Mumble source tree or at <https://www.mumble.info/LICENSE>.
 
-#include <QtCore/QtGlobal>
+#include "ServerDB.h"
 
 #ifdef Q_OS_WIN
 #	include "win.h"
 #endif
 
-#include "ServerDB.h"
-
 #include "ACL.h"
 #include "Channel.h"
 #include "Connection.h"
@@ -22,12 +20,14 @@
 #include "ServerUser.h"
 #include "User.h"
 
+#include <cstdint>
+
 #include <QtCore/QCoreApplication>
+#include <QtCore/QTimeZone>
+#include <QtCore/QtGlobal>
 #include <QtSql/QSqlError>
 #include <QtSql/QSqlQuery>
 
-#include <cstdint>
-
 #ifdef Q_OS_WIN
 #	include <winsock2.h>
 #else
@@ -1210,7 +1210,11 @@ QList< UserInfo > Server::getRegisteredUsersEx() {
 		userinfo.name         = query.value(1).toString();
 		userinfo.last_channel = query.value(2).toInt();
 		userinfo.last_active  = QDateTime::fromString(query.value(3).toString(), Qt::ISODate);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+		userinfo.last_active.setTimeZone(QTimeZone::UTC);
+#else
 		userinfo.last_active.setTimeSpec(Qt::UTC);
+#endif
 
 		users << userinfo;
 	}
@@ -2220,14 +2224,22 @@ int Server::readLastChannel(int id) {
 		}
 
 		QDateTime last_active = QDateTime::fromString(query.value(1).toString(), Qt::ISODate);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+		last_active.setTimeZone(QTimeZone::UTC);
+#else
 		last_active.setTimeSpec(Qt::UTC);
+#endif
 		QDateTime last_disconnect;
 
 		// NULL column for last_disconnect will yield an empty invalid QDateTime object.
 		// Using that object with QDateTime::secsTo() will return 0 as per Qt specification.
 		if (!query.value(2).isNull()) {
 			last_disconnect = QDateTime::fromString(query.value(2).toString(), Qt::ISODate);
+#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+			last_disconnect.setTimeZone(QTimeZone::UTC);
+#else
 			last_disconnect.setTimeSpec(Qt::UTC);
+#endif
 		}
 
 		if (last_active.secsTo(last_disconnect) <= 0) {
@@ -2312,7 +2324,11 @@ void Server::getBans() {
 		ban.qsHash     = query.value(3).toString();
 		ban.qsReason   = query.value(4).toString();
 		ban.qdtStart   = query.value(5).toDateTime();
+#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
+		ban.qdtStart.setTimeZone(QTimeZone::UTC);
+#else
 		ban.qdtStart.setTimeSpec(Qt::UTC);
+#endif
 		ban.iDuration = query.value(6).toUInt();
 
 		if (ban.isValid())