#include <iostream>
#include <string>
#include <ctime>
#include <iomanip>
#include <locale>
#include <sstream>
 
bool parseAscTimeDate(std::tm& tm, const std::string& str) {
    std::istringstream ss(str);
    //ss.imbue(std::locale("en_US.UTF8")); //try timezone?
    ss >> std::get_time(&tm, "%a %b  %d %H:%M:%S %Y");
    return !ss.fail();
}
 
int main()
{
   /* ANSI C's asctime format */
   std::tm tm;
   if (parseAscTimeDate(tm, "Sun Nov  06 08:49:37 1994"))
       std::cout << "Ok!" << std::endl;
   else
       std::cout << "Wrong!" << std::endl;
}

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