diff --git a/README.md b/README.md
index 3e64659..f324893 100644
--- a/README.md
+++ b/README.md
@@ -649,7 +649,7 @@ from dateutil.tz import UTC, tzlocal, gettz, datetime_exists, resolve_imaginary
 >>> dt.strftime("%A, %dth of %B '%y, %I:%M%p %Z")
 "Thursday, 14th of May '15, 11:39PM UTC+02:00"
 ```
-* **`'%Z'` only accepts `'UTC/GMT'` and local timezone's code. `'%z'` also accepts `'±02:00'`.**
+* **`'%Z'` only accepts `'UTC/GMT'` and local timezone's code. `'%z'` also accepts `'±HH:MM'`.**
 * **For abbreviated weekday and month use `'%a'` and `'%b'`.**
 
 ### Arithmetics
diff --git a/index.html b/index.html
index 1b1d7ea..4065966 100644
--- a/index.html
+++ b/index.html
@@ -54,7 +54,7 @@
 
 <body>
   <header>
-    <aside>April 19, 2022</aside>
+    <aside>April 20, 2022</aside>
     <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
   </header>
 
@@ -578,7 +578,7 @@ to_exclusive   = &lt;range&gt;.stop
 </code></pre></div>
 
 <ul>
-<li><strong><code class="python hljs"><span class="hljs-string">'%Z'</span></code> only accepts <code class="python hljs"><span class="hljs-string">'UTC/GMT'</span></code> and local timezone's code. <code class="python hljs"><span class="hljs-string">'%z'</span></code> also accepts <code class="python hljs"><span class="hljs-string">'±02:00'</span></code>.</strong></li>
+<li><strong><code class="python hljs"><span class="hljs-string">'%Z'</span></code> only accepts <code class="python hljs"><span class="hljs-string">'UTC/GMT'</span></code> and local timezone's code. <code class="python hljs"><span class="hljs-string">'%z'</span></code> also accepts <code class="python hljs"><span class="hljs-string">'±HH:MM'</span></code>.</strong></li>
 <li><strong>For abbreviated weekday and month use <code class="python hljs"><span class="hljs-string">'%a'</span></code> and <code class="python hljs"><span class="hljs-string">'%b'</span></code>.</strong></li>
 </ul>
 <div><h3 id="arithmetics">Arithmetics</h3><pre><code class="python language-python apache hljs">&lt;D/DT&gt;   = &lt;D/DT&gt;  ± &lt;TD&gt;                   <span class="hljs-comment"># Returned datetime can fall into missing hour.</span>
@@ -2887,7 +2887,7 @@ $ pyinstaller script.py --add-data '&lt;path&gt;:.'  <span class="hljs-comment">
  
 
   <footer>
-    <aside>April 19, 2022</aside>
+    <aside>April 20, 2022</aside>
     <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
   </footer>
 
