std::mktime and timezone info

by 
timestamp = mktime(&tm) - _timezone;

or platform independent way:

 timestamp = mktime(&tm) - timezone;

If you look in the source of mktime() on line 00117, the time is converted to local time:

seconds += _timezone;

More Related Contents:

  1. New to programming: How to call a structure’s variables in a function and then update them? (C++) [closed]
  2. How to extract a multiline text segment between two delimiters under a certain heading from a text file using C++ [closed]
  3. When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
  4. Why is volatile not considered useful in multithreaded C or C++ programming?
  5. Most efficient way to compare a variable to multiple values?
  6. What does ‘unsigned temp:3’ in a struct or union mean? [duplicate]
  7. Will std::string always be null-terminated in C++11?
  8. C++ return array from function [duplicate]
  9. The differences between initialize, define, declare a variable
  10. Using newly declared variable in initialization (int x = x+1)?
  11. Change the current working directory in C++
  12. Does std::vector *have* to move objects when growing capacity? Or, can allocators “reallocate”?
  13. Compile the Python interpreter statically?
  14. Operator overloading outside class [duplicate]
  15. How to update a printed message in terminal without reprinting
  16. Do c++ templates make programs slow?
  17. Why doesn’t std::string provide implicit conversion to char*?
  18. Getting a vector into a function that expects a vector
  19. Understanding (simple?) C++ Partial Template Specialization
  20. What is the reason behind cbegin/cend?
  21. Class inherited from class without default constructor
  22. In C/C++, is char* arrayName[][] a pointer to a pointer to a pointer OR a pointer to a pointer?
  23. Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplicate]
  24. Macro / keyword which can be used to print out method name?
  25. Obtain container type from (its) iterator type in C++ (STL)
  26. Purpose of struct, typedef struct, in C++
  27. Two colours text in QPushButton
  28. How do I guarantee fast shutdown of my win32 app?
  29. Variable Sized Struct C++
  30. Why is this C++ wrapper class not being inlined away?

Leave a Comment