I don't really understand the difference between DateTime and LocalDateTime. When I execute the following code DateTime always gives me one day ahead, while LocalDateTime always give the correct date. However, I need to use DateTime's because I'm using MySQL and if I use LocalDateTimes dates usually go crazy, and that does not happen with DateTimes. How can I make DateTime give me the correct date in the following code?
Thanks...
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#include <iostream>
#include <Poco/DateTime.h>
#include <Poco/DateTimeFormatter.h>
int main() {
Poco::DateTime d;
std::cout << Poco::DateTimeFormatter::format(d, "%d/%m/%Y") << std::endl;
return 0;
}
Edit: Ok, the problem was related to Time Zones. I think I now understand how they work. I don't really need to use LocalDateTime. I'm posting a solution... would you please confirm I'm using it the right way:
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#include <iostream>
#include <string>
#include <Poco/DateTime.h>
#include <Poco/DateTimeFormat.h>
#include <Poco/DateTimeFormatter.h>
#include <Poco/DateTimeParser.h>
#include <Poco/Timezone.h>
class DateTime {
private:
int tzd;
Poco::DateTime dateTime;
public:
DateTime() {
tzd = Poco::Timezone::tzd();
dateTime.makeLocal(tzd);
}
std::string str() {
return Poco::DateTimeFormatter::format(dateTime, Poco::DateTimeFormat::HTTP_FORMAT, tzd);
}
bool parse(std::string date) {
int tzd;
return Poco::DateTimeParser::tryParse("%d/%m/%Y", date, dateTime, tzd);
}
};
int main() {
DateTime d;
std::cout << d.str() << std::endl;
d.parse("27/02/2013");
std::cout << d.str() << std::endl;
return 0;
}
The program outputs this:
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Wed, 27 Feb 2013 11:01:54 -0600
Wed, 27 Feb 2013 00:00:00 -0600
Thank you