# How long does it take

**How long does it take to cross the bridge?**

From Ethereum to Alephium, bridging is fairly fast! Get the transaction validated on ETH side, let the guardians do their magic, et voilà! You should be out in no time, or roughly 20 minutes.

From Alephium to Ethereum, it will take a bit more time. For security reasons, and because the max chain reorg on ALPH is 200 blocks, the transaction needs to meet two conditions: *at least 205 blocks **and** at least 55 minutes.*. Then, after the user starts the redeeming process, the transaction goes through the guardians and on the Ethereum side, taking more or less 15 minutes. So in total, the full process takes a little bit more than 1 hour.

This might evolve to be shorter in the future as the hashrate increases, but for now the decision was taken to ensure the best trade-off in terms of security vs transaction time.

<br>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ayin.app/ayin/ayin-metabridge/how-long-does-it-take.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.