# forge.indicator.normalize_timeframe

```python
forge.indicator.normalize_timeframe(text: str) -> str
```

A timeframe in C1's spelling: ``M7``, ``H4``, ``D1``, ``W1``, ``MN1``.

``7m``, ``90m``, ``4h``, ``3D`` and the like are accepted and converted; weeks and months come
one at a time (``1W``, ``1M``). Anything else is ``ValueError("data_invalid: ...")``.

Since Forge API 1.