title: Set global culture for DateTimeOffset Format etc on .Net Core Console App
body: <p>How can I set <em>global culture</em> for <code>DateTimeOffset</code> Format etc on .Net Core Console App?
  My problem is that my pc is using a <em>nordic culture</em> which formats datetimeoffset like <code>"03.07.2019"</code> when it should format it like <code>03-07-2019</code> or <code>2019-07-01</code>.</p>
  
  <p>How can I fix this? My program is running async tasks.</p>
  
  <p>Because the <code>DateTimeOffset</code> is a <code>ToString();</code> so I have a hard way to convert the string while keeping it as a string type.</p>