flutter date format

#include <iostream>
#include <iomanip>
#include <sstream>
#include <ctime>

int main() {
    // Get the current time
    std::time_t now = std::time(0);

    // Convert the current time to struct tm for formatting
    std::tm* timeinfo = std::localtime(&now);

    // Create a string stream to format the date
    std::stringstream ss;

    // Set the desired date format using std::put_time
    ss << std::put_time(timeinfo, "%Y-%m-%d %H:%M:%S");

    // Convert the stringstream to a string containing the formatted date
    std::string formattedDate = ss.str();

    // Output the formatted date
    std::cout << "Formatted date: " << formattedDate << std::endl;

    return 0;

Explanation: - #include <iostream>: Includes the input/output stream for handling input and output operations. - #include <iomanip>: Includes input/output manipulators for controlling the format of input and output. - #include <sstream>: Includes the stringstream class for string-based input/output. - #include <ctime>: Includes functions and types to work with date and time information. - std::time_t now = std::time(0);: Gets the current time using std::time. - std::tm* timeinfo = std::localtime(&now);: Converts the current time to a tm structure to handle date and time components. - std::stringstream ss;: Creates a stringstream object to handle string-based input/output. - ss << std::put_time(timeinfo, "%Y-%m-%d %H:%M:%S");: Uses std::put_time to format the date and time according to the specified format ("%Y-%m-%d %H:%M:%S") and stores it in the stringstream. - std::string formattedDate = ss.str();: Converts the stringstream content to a string containing the formatted date. - std::cout << "Formatted date: " << formattedDate << std::endl;: Outputs the formatted date to the console.