# How to retrieve webinar total duration

**URL:** <https://devforum.zoom.us/t/how-to-retrieve-webinar-total-duration/21190>\
**Category:** API and Webhooks\
**Created:** [June 12, 2020, 12:25pm UTC](https://devforum.zoom.us/t/how-to-retrieve-webinar-total-duration/21190 "2020-06-12T12:25:28Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![priya.jetley](https://avatars.discourse-cdn.com/v4/letter/p/b3f665/32.png) [@priya.jetley](https://devforum.zoom.us/u/priya.jetley)\
**Post date:** [June 12, 2020, 12:25pm UTC](https://devforum.zoom.us/t/how-to-retrieve-webinar-total-duration/21190/1 "2020-06-12T12:25:28Z")

</div>

Hello,

Is there a way to retrieve a webinar’s total duration?  
I tried  
{{baseUrl}}/webinars/:webinarId?occurrence\_id=:occurrence\_id

But for each occurrence id the duration was the same i.e. 300.  
We are trying to calculate the percentage attendance of each participant of a webinar, and therefore, need to know the total number of minutes/seconds a webinar ran.  
If there isn’t a single value I can fetch via the API then I will have to take the webinar host’s total duration and divide each participants attendance duration by it.  
Unless there is another,perhaps, more accurate way to achieve this?

Thanks!  
Priya

---

<div class="post-metadata">

**Author:** ![michael.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael.zoom/32/37213_2.png) [@michael.zoom](https://devforum.zoom.us/u/michael.zoom)\
**Post date:** [June 17, 2020, 9:18pm UTC](https://devforum.zoom.us/t/how-to-retrieve-webinar-total-duration/21190/2 "2020-06-17T21:18:34Z")

</div>

Hi @priya.jetley, the duration value there is meant to be used for scheduling / calendar integrations, so will not show the actual length of time of the Webinar. Instead, we provide the [Webinar Detail Report API](https://marketplace.zoom.us/docs/api-reference/zoom-api/reports/reportwebinardetails) which will show a start time, end time, and duration of the webinar UUID:

> **[Get Webinar Detail Reports - Reports - Zoom API - API Reference](https://marketplace.zoom.us/docs/api-reference/zoom-api/reports/reportwebinardetails)**
>
> Retrieve a report containing past webinar details.  
> Scopes: report:read:admin
> 
> Rate Limit Label: Heavy
> Prerequisites:
> 
> Pro or higher plan with Webinar...

---

<div class="post-metadata">

**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 10:06pm UTC](https://devforum.zoom.us/t/how-to-retrieve-webinar-total-duration/21190/3 "2020-08-21T22:06:41Z")

</div>

Closed on August 21, 2020, 10:06pm UTC