SimpleDateFormat parses date string to wrong value - spring

Question

I have a date input that reaches the Controller and it performs a conversion from String to Date.
The problem is, the mapping method always returns one day less than I'd expect. If I pass 30/12/2010 it returns a Date object with 29/12/2010 as its value.
I have solved it with a small method that adds a day after the Mapper but I don't know if it is the most correct way:
public class DateMapperImpl implements DateMapper {
#Override
public String dateToString(Date date, String format) {
return date != null ? new SimpleDateFormat(format).format(date) : null;
}
#Override
public Date stringToDate(String date, String format) {
try {
return date != null ? addDayDate(new SimpleDateFormat(format).parse(date)) : null;
} catch (ParseException e) {
throw new RuntimeException(e);
}
}
public Date addDayDate(Date fecha) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(fecha);
calendar.add(Calendar.DAY_OF_YEAR, 1);
return calendar.getTime();
}
}
Do you have any idea how to solve it properly?
SOLUTION
I already found the solution. In my case it has been necessary to add this method in the Application class.
#SpringBootApplication
public class BooksApplication {
public static void main(String[] args) {
SpringApplication.run(BooksApplication.class, args);
}
#PostConstruct
public void init(){
// Setting Spring Boot SetTimeZone
TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
}
}
Thank you very much for the answers because they guided me to look for information with a different mindset.