developers.home-assistant/docs/core/entity/datetime.md

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---
title: Date/Time entity
sidebar_label: Date/Time
---
A `datetime` is an entity that allows the user to input a timestamp to an integration. Derive entity platforms from [`homeassistant.components.datetime.DateTimeEntity`](https://github.com/home-assistant/core/blob/dev/homeassistant/components/datetime/__init__.py)
## Properties
:::tip
Properties should always only return information from memory and not do I/O (like network requests). Implement `update()` or `async_update()` to fetch data.
:::
| Name | Type | Default | Description
| ---- | ---- | ------- | -----------
| native_value | <code>datetime.datetime &#124; None</code> | **Required** | The value of the datetime. Must include timezone info.
Other properties that are common to all entities such as `icon`, `name` etc are also applicable.
## Methods
### Set value
Called when the user or an automation wants to update the value. The input datetime will always be in UTC.
```python
class MyDateTime(DateTimeEntity):
# Implement one of these methods.
def set_value(self, value: datetime) -> None:
"""Update the current value."""
async def async_set_value(self, value: datetime) -> None:
"""Update the current value."""
```