title: How to change default sys.time options?
body: <p>This is probably a very basic question but since I did not deal with dates and times in R, I didn't know how to solve it. The problem is when I open a new R session and run <code>sys.time()</code> it gives me wrong time. I found a solution to that <code>Sys.setenv(TZ=&quot;TURKEY&quot;)</code> and changed it. However, when I close R and open it again. It goes back to wrong result again. How do I make this permanent?</p>
  <pre><code>&gt; Sys.time()
  [1] &quot;2022-04-01 11:16:37 GMT&quot;
  Warning messages:
  1: In normalizePath(dirname(f)) : path[1]=&quot;NA&quot;: No such file or directory
  2: In as.POSIXlt.POSIXct(x, tz) :
    unknown timezone 'zone/tz/2022a.1.0/zoneinfo/Europe/Istanbul'
  &gt; Sys.setenv(TZ=&quot;TURKEY&quot;)
  &gt; Sys.time()
  [1] &quot;2022-04-01 14:17:39 EEST&quot;
  </code></pre>