<DTn> = DT.fromtimestamp(<real>) # Local time DTn from seconds since the Epoch.
<DTa> = DT.fromtimestamp(<real>, <tz.>) # Aware datetime from seconds since the Epoch.
```
* **ISO strings come in following forms: `'YYYY-MM-DD'`, `'HH:MM:SS.mmmuuu[±HH:MM]'`, or both separated by an arbitrary character. All parts following hours are optional.**
* **ISO strings come in following forms: `'YYYY-MM-DD'`, `'HH:MM:SS.mmmuuu[±HH:MM]'`, or both separated by an arbitrary character. All parts following the hours are optional.**
<li><strong>ISO strings come in following forms: <codeclass="python hljs"><spanclass="hljs-string">'YYYY-MM-DD'</span></code>, <codeclass="python hljs"><spanclass="hljs-string">'HH:MM:SS.mmmuuu[±HH:MM]'</span></code>, or both separated by an arbitrary character. All parts following hours are optional.</strong></li>
<li><strong>ISO strings come in following forms: <codeclass="python hljs"><spanclass="hljs-string">'YYYY-MM-DD'</span></code>, <codeclass="python hljs"><spanclass="hljs-string">'HH:MM:SS.mmmuuu[±HH:MM]'</span></code>, or both separated by an arbitrary character. All parts following the hours are optional.</strong></li>