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  1. #include <iostream>
  2. #include <cstring>
  3. #include <ctime>
  4. #include <iomanip>  // for std::put_time
  5. using namespace std;
  6.  
  7. time_t test (unsigned int date, unsigned int hhmmss)
  8. {
  9. 	int yyyy = (int) date / 10000;
  10.     int mn   = (int) date / 100 - (yyyy * 100);
  11.     int dd   = (int) date - (yyyy * 10000) - (mn * 100);
  12.  
  13.     struct tm t;
  14.     memset(&t, 0, sizeof(t));
  15.  
  16.     t.tm_year = yyyy - 1900;
  17.     t.tm_mon  = mn - 1;
  18.     t.tm_mday = dd;
  19.     t.tm_hour = hhmmss / 10000;
  20.     t.tm_min  = hhmmss / 100 - (t.tm_hour * 100);
  21.     t.tm_sec  = hhmmss - (t.tm_hour * 10000) - (t.tm_min * 100);
  22.     t.tm_isdst = -1;
  23.     return mktime(&t);
  24. }
  25.  
  26. int main() {
  27. 	time_t ttt = test(20250528, 112299);
  28. 	std::tm* local_tm = std::localtime(&ttt);  // convert to local time structure
  29.  
  30.     std::cout << "Current time: "
  31.               << std::put_time(local_tm, "%Y-%m-%d %H:%M:%S") << std::endl;
  32. 	cout << "ok." << endl;
  33. 	return 0;
  34. }
Success #stdin #stdout 0.01s 5288KB
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Current time: 2025-05-28 11:23:39
ok.
https://ideone.com/HvPDaD
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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