get_minimal_parkingtime():

Call Calculator::GetInstance().GetTimeSteps() to initialize
	time-step-list. This internally recomputes the minimal parking
	time (until midnight) which cannot be configured (as static value)
	in tariff-file.

library/src/calculate_price.cpp

@@ -36,6 +36,8 @@ int CALCULATE_LIBRARY_API get_minimal_parkingtime(Configuration const *cfg,
 
     switch(permitType) {
     case PERMIT_TYPE::SHORT_TERM_PARKING: { // e.g. szeged (customer_281)
+        QList<int> const tsteps = Calculator::GetInstance().GetTimeSteps((Configuration *)cfg, paymentOptionIndex);
+        Q_UNUSED(tsteps);
         minTime = cfg->getPaymentOptions(paymentOptionIndex).pop_min_time;
     } break;
     case PERMIT_TYPE::DAY_TICKET_ADULT: {