diff --git a/library/src/calculate_price.cpp b/library/src/calculate_price.cpp
index d14eea7..935b872 100644
--- a/library/src/calculate_price.cpp
+++ b/library/src/calculate_price.cpp
@@ -996,15 +996,20 @@ CalcState CALCULATE_LIBRARY_API compute_duration_for_parking_ticket(
         } else {
             ticketEndTime = QDateTime::fromString(endTime,Qt::ISODate);
 
-            // DEBUG
-            //qCritical() << "compute_duration_for_parking_ticket(): ";
-            //qCritical() << "                 endTime: " << endTime;
-            //qCritical() << "           ticketEndTime: " << ticketEndTime;
-
             if (!ticketEndTime.isValid()) {
                 calcState.setDesc(QString("ticketEndTime=%1").arg(endTime));
                 return calcState.set(CalcState::State::WRONG_ISO_TIME_FORMAT);
             }
+
+            if (ticketEndTime.time().hour() == 0 && ticketEndTime.time().minute() == 0) {
+                ticketEndTime = ticketEndTime.addDays(-1);
+                ticketEndTime.setTime(QTime(23, 59, 0));
+            }
+
+            // DEBUG
+            qCritical() << "compute_duration_for_parking_ticket(): ";
+            qCritical() << "                 endTime: " << endTime;
+            qCritical() << "           ticketEndTime: " << ticketEndTime;
         }
     } else {
         return calcState.set(CalcState::State::INVALID_START_DATE);