> For the complete documentation index, see [llms.txt](https://docs.dataloy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dataloy.com/release-8.31/voyage-management-system/step-by-step-guides/operations/laytime-calculations/create-laytime-calculation.md).

# Create Laytime Calculation

Create Laytime Calculation Dialog

1. Open the **Laytime Calculation** module in the Operations section.
2. Click **Create Laytime Calculation**<img src="https://content.gitbook.com/content/zjy4yJFZRJooU1EGrLs5/blobs/oyxPCZ0C2MkUCJTWGrOP/create-24px.svg" alt="" data-size="line">in the top right corner.
3. Fill in all required fields listed below in the Create New Laytime Calculation window.
4. Click **Create**.

### **Required fields**

| *Vessel \**             | Used to filter *Vessels*                            |
| ----------------------- | --------------------------------------------------- |
| *Voyage - Counterpart*  | Combines the voyage reference and cargo counterpart |
| *Responsible Charterer* | Responsible charterer, default to the current user  |
| *Cargo Ports*           | Cargo Ports to be included in the calculations      |

\* Only available when not creating a laytime calculation from the voyage drawer.

{% hint style="info" %}
Field Conditions

Each field narrows down the next choice. Once a Vessel has been selected, the Voyage - Counterpart field will be enabled. With both Vessel and Voyage - Counterpart selected, the related cargo ports will appear underneath.

At least one cargo port MUST be chosen.
{% endhint %}

<figure><img src="https://content.gitbook.com/content/zjy4yJFZRJooU1EGrLs5/blobs/Q94WDjouhqQYBEg5fNsu/Skjermbilde%202024-08-06%20kl.%2014.39.02.png" alt=""><figcaption><p>Vessel, voyage and counterpart selected. Cargo ports available for selection.</p></figcaption></figure>


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