diff --git a/README.md b/README.md
index 42dc8e1..e8ab3fb 100644
--- a/README.md
+++ b/README.md
@@ -628,7 +628,7 @@ from dateutil.tz import UTC, tzlocal, gettz
 <DTn>    = DT.fromtimestamp(<real>)         # Local time DTn from seconds since Epoch.
 <DTa>    = DT.fromtimestamp(<real>, <tz.>)  # Aware datetime from seconds since Epoch.
 ```
-* **ISO strings come in following forms: `'YYYY-MM-DD'`, `'HH:MM:SS.ffffff[±<offset>]'`, or both separated by `'T'`. Offset is formatted as: `'HH:MM'`.**
+* **ISO strings come in following forms: `'YYYY-MM-DD'`, `'HH:MM:SS.ffffff[±<offset>]'`, or both separated by space or `'T'`. Offset is formatted as: `'HH:MM'`.**
 * **On Unix systems Epoch is `'1970-01-01 00:00 UTC'`, `'1970-01-01 01:00 CET'`, ...**
 
 ### Decode
diff --git a/index.html b/index.html
index 9a0f219..ff0f983 100644
--- a/index.html
+++ b/index.html
@@ -676,7 +676,7 @@ shuffle(&lt;list&gt;)
 </code></pre></div>
 
 <ul>
-<li><strong>ISO strings come in following forms: <code class="python hljs"><span class="hljs-string">'YYYY-MM-DD'</span></code>, <code class="python hljs"><span class="hljs-string">'HH:MM:SS.ffffff[±&lt;offset&gt;]'</span></code>, or both separated by <code class="python hljs"><span class="hljs-string">'T'</span></code>. Offset is formatted as: <code class="python hljs"><span class="hljs-string">'HH:MM'</span></code>.</strong></li>
+<li><strong>ISO strings come in following forms: <code class="python hljs"><span class="hljs-string">'YYYY-MM-DD'</span></code>, <code class="python hljs"><span class="hljs-string">'HH:MM:SS.ffffff[±&lt;offset&gt;]'</span></code>, or both separated by space or <code class="python hljs"><span class="hljs-string">'T'</span></code>. Offset is formatted as: <code class="python hljs"><span class="hljs-string">'HH:MM'</span></code>.</strong></li>
 <li><strong>On Unix systems Epoch is <code class="python hljs"><span class="hljs-string">'1970-01-01 00:00 UTC'</span></code>, <code class="python hljs"><span class="hljs-string">'1970-01-01 01:00 CET'</span></code>, …</strong></li>
 </ul>
 <div><h3 id="decode">Decode</h3><pre><code class="python language-python hljs">&lt;str&gt;    = &lt;D/T/DT&gt;.isoformat()             <span class="hljs-comment"># ISO string representation.</span>