Change timezone with TZ environment variable in Windows

If your program uses one of the following MFC or CRT function, then you can change timezone using TZ environment variable: CTime::GetLocalTm CTime::Format COleDateTime::operator= ctime _wctime _tctime _ctime64 _wctime64 _tctime64 mktime _mktime64 _utime _wutime _tutime _utime64 _wutime64 _tutime64 For example, to set the TZ environment variable to correspond to the current time zone in Germany, …