# 计算和查看项目的持续时间

鼠标悬浮在工作项进度条上会出现工作项详情，可以查看计算出单个工作项的持续时间，确认活动的工作量并做进一步的调整；

![](/files/-M2wv93aHd-LjPyI7s4p)

### 不同周期的进度查看

支持按天、周、月、季度、半年、年视图查看甘特图进度，帮助项目管理员从不同的时间跨度上，把握整体的项目完成情况。

* 设置完项目下各项工作项的开始/结束时间后，会自动计算出项目总的开始/结束日期和持续时间，可以调整时间跨度，按天、周、月、季度、半年、年视图查看项目总体进度，从不同时间维度上整体把握项目完成情况。

![](/files/-M2wvcnAzUkn0DGcrowF)


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# 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://guides-ones.gitbook.io/guides/usage-guide/ones-plan/gan-te-tu/ji-suan-he-cha-kan-dan-ge-ren-wu-de-chi-xu-shi-jian.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.