The Acquisition Date is the first visit of a visitor to your website that was tracked in Matomo. The Acquisition Date is stored in the Matomo database as a UTC timestamp, for example YYYY-MM-DD hh:mm:ss

Segmenting for a specific Date

To create a segment for your website to see all visits from Visitors who first entered your website on a specific date, we can create a segment with the following conditions using the example date of June 20, 2021:

Acquisition Date Greater than 2021-06-20
AND
Acquisition Date Less than 2021-06-21

If your website is in a timezone other than UTC, you will need to adjust the segment conditions to match the timezone of your website as displayed in the Visits Log
So for example, if your website in Matomo is set to UTC +4, we can change the segment conditions to account for the timezone difference.

For our June 20, 2021 example the conditions would be as follows:

Acquisition Date Greater than 2021-06-19 20:00:00
AND
Acquisition Date Less than 2021-06-20 20:00:00

This will match all visits between Midnight on June 19th and Midnight on June 20th for a website that has the timezone set to UTC +4.

Segmenting for a specific Time

To create a segment for visitors that entered your website during a specific time frame on a specific day, we simply create a segment using the UTC timestamp for the hours we want to segment for.
For example, if we want to segment for all visitors who had their first visit between 1PM and 2PM on June 20, 2021 we would create our segment as follows:

Acquisition Date Greater than 2021-06-20 13:00:00
AND
Acquisition Date Less than 2021-06-20 14:00:00

And again, if your website is in a timezone other than UTC you will need to compensate for the time difference. So using the same example as above of a website with the timezone of UTC +4 our segment would have the following conditions to match visits between 1PM and 2PM on June 20, 2021:

Acquisition Date Greater than 2021-06-20 09:00:00
AND
Acquisition Date Less than 2021-06-20 10:00:00

If your website is in a timezone with a negative UTC difference, you will need to adjust the time by adding the time difference to the timestamp in your segment. For example a website with a UTC timezone of -7 we would use the following conditions to match visits between 1PM and 2PM on June 20, 2021:

Acquisition Date Greater than 2021-06-20 20:00:00
AND
Acquisition Date Less than 2021-06-20 21:00:00

For more information on creating segments in Matomo, see our Segmentation Guide