title: Cannot find time.h (timezone, daylight, tzname) in Visual Studio 2015
body: <p>I am unable to find <code>time.h</code> (specifically the identifiers <code>timezone</code>, <code>daylight</code> and <code>tzname</code>) in Visual Studio 2015 (14.0). The include is present in Visual Studio 2013 (under <code>VC/includes</code>) and is also found if I compile with <code>VS2015</code> and <code>PlatformToolset=v120</code>.</p>
  
  <p>Is my installation partial? Why there's no <code>time.h</code>, and even a recursive grep under <code>VS2015/VC</code> I can't seem to find those identifiers?</p>