correct QDateTime on March 28, 1976 reported as invalid

on macOS, this correct date is reported as QDateTime(Invalid)

qDebug() << QDateTime(QDate(1976, 3, 28), QTime(1, 0, 0), QTimeZone("Europe/Paris"));

on Windows, this one is also reported as QDateTime(Invalid)

qDebug() << QDateTime(QDate(1976, 3, 28), QTime(2, 0, 0), QTimeZone("Europe/Paris"));

it seems that the problem only occurs with this particular date, 1976-03-28

it's an important issue because
QDatetime(anydatebefore1976_03_28).msecsTo(anydateafter1976_03_28)
is wrong

thanks for your wonderful work !