What does 'updated' include in a JQL?

[Georgia Harty]

I have 2 issues coming up in a JQL for both 'updated' and 'not updated' within the same time period. 
Thanks, 

[Bill Sheboy]

Hi @Georgia Harty -- Welcome to the Atlassian Community!

Updated is the date / time of the last issue change: https://support.atlassian.com/jira-software-cloud/docs/jql-fields/#Updated

If your JQL statement is not working as expected, please post your entire JQL statement as that will help the community offer suggestions to explain what you observe.

Until we see that...I hypothesize your JQL has a misplaced AND or OR keyword, or is missing some parentheses.

Kind regards,
Bill

[Gyeorye Lee]

It covers any updated on the ticket.

https://community.atlassian.com/t5/Jira-questions/What-does-quot-updated-quot-JQL-actually-cover/qaq-p/622585