# Open the event creation page 
Supported by Feishu 3.40.0 and later versions.

## Scenario
Redirect to the Calendar tab and enter the event creation page.

## Protocol
[https://applink.feishu.cn/client/calendar/event/create](https://applink.feishu.cn/client/calendar/event/create)

##  Parameter
| Field         | Required           | Description        | 
| --------- | --------------- | -------   | 
|startTime|No         |Start date in the {unixTime} format|
|endTime|No         |End date in the {unixTime} format|
|summary|No         |Event topic. The event topic in Chinese can be generated by using the encodeURIComponent method.|
Notes about parameters `startTime` and `endTime`:

1.  When `startTime` and `endTime` are both valid, the time sequence verification is not required. If `startTime` is later than `endTime`, AppLink will still be redirected to but with an error.
2.  When `startTime` is invalid, `endTime` will also be invalid, and an event will be created with `now` as the start time and `now + defaultDuration` as the end time. `defaultDuration` is the default duration of an event. See "Settings" in Calendar.
3.  When `startTime` is valid and `endTime` is invalid, an event will be created with `startTime` as the start time and `startTime + defaultDuration` as the end time. `defaultDuration` is the default duration of an event. See "Settings" in Calendar.

## Examples
#### 1. Open the event creation page and set the start time

[https://applink.feishu.cn/client/calendar/event/create?startTime=1581950880](https://applink.feishu.cn/client/calendar/event/create?startTime=1581950880)

#### 2. Open the event creation page and set the start time and end time

[https://applink.feishu.cn/client/calendar/event/create?startTime=1581950880&endTime=1581951000](https://applink.feishu.cn/client/calendar/event/create?startTime=1581950880&endTime=1581951000)

#### 3. Open the event creation page and set the start time and topic
[https://applink.feishu.cn/client/calendar/event/create?startTime=1581950880&summary=%E6%88%91%E7%9A%84%E6%96%B0%E6%97%A5%E7%A8%8B](https://applink.feishu.cn/client/calendar/event/create?startTime=1581950880&summary=%E6%88%91%E7%9A%84%E6%96%B0%E6%97%A5%E7%A8%8B)