# Average hourly data

**URL:** <https://community.purpleair.com/t/average-hourly-data/4330>\
**Category:** Data\
**Created:** [April 25, 2023, 5:19pm UTC](https://community.purpleair.com/t/average-hourly-data/4330 "2023-04-25T17:19:54Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Zuber\_Farooqui](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/zuber_farooqui/32/610_2.png) [@Zuber\_Farooqui](https://community.purpleair.com/u/Zuber_Farooqui)\
**Post date:** [April 25, 2023, 5:19pm UTC](https://community.purpleair.com/t/average-hourly-data/4330/1 "2023-04-25T17:19:54Z")

</div>

Dear PurpleAir Support,

One question on the averaged hourly data. Is the time the start time of average or the end time of average? For example, for a data record with time stamp 2020-09-29 02:00:00, is the average over 01:00:01 to 02:00:00 or average over 02:00:00 to 02:59:59?

Thank you!

---

<div class="post-metadata">

**Author:** ![Andrew](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/andrew/32/1211_2.png) [@Andrew](https://community.purpleair.com/u/Andrew)\
**Post date:** [June 15, 2023, 9:44pm UTC](https://community.purpleair.com/t/average-hourly-data/4330/2 "2023-06-15T21:44:19Z")

</div>

Hi Zuber, the latter is correct: 02:00:00 to 02:59:59.