JIRA JQL Issues created between 5pm and midnight for an entire month

Question

Does anyone know how to filter issues in a given project to show only issues that were created between 5pm and midnight for an entire month?

I am able to constrain between 5pm and midnight on a single day as below but am unsure how to make it do the whole month:

project = CI AND issuetype = "Activity" AND (created >= endOfDay('-1860m') AND created <= endOfDay(-1440m))

Answer 1

Had to write a JQL function using the GroovyRunner plugin in JIRA. Am having some performance issues which I will put in another StackOverflow question

EDIT: Performance issue post available here: https://stackoverflow.com/questions/18606967/jira-jql-performance-issue-with-custom-function-in-groovyrunner