title: Golang jwt.StandardClaims time format type issue
body: <p>I am using this package <code>github.com/dgrijalva/jwt-go/v4</code> to set up claims in a Login function:</p>
  <pre><code>now := time.Now()
  claims := &amp;jwt.StandardClaims{
      Issuer: &quot;Test&quot;,
      ExpiresAt: now.Add(time.Hour * 24).Unix(),
  }
  </code></pre>
  <p>The IDE keeps telling me:</p>
  <blockquote>
  <p>Cannot use 'now.Add(time.Hour * 24).Unix()' (type int64) as the type <em>Time</em>.</p>
  </blockquote>
  <p>I read that as I have the wrong typed value, however, on all the examples I've seen online, this is exactly how the majority set up this up.</p>
  <p>I am still learning go and so I am not sure the proper way to convert this time format into something that is valid.</p>