Allow custom range for Report for a more detailed results

NOTE: This suggestion is for JIRA Service Desk Server. Using JIRA Service Desk Cloud? See the corresponding suggestion.

I have a complaint about SLA reports of JIRA Service Desk and I think this should be classified as a bug as I don't want to believe it was designed this way.

The reports tab of JSD service provider interface show line charts about number of created, resolved tickets for past 7 days, 30 days, etc. As far as I understand, report filters tickets based on createddate and resolveddate of the issues. The annoying thing is, if I select a report for the past 7 days and run the report at say ... 10:00 AM, the date filter includes records for the past 6x24 hours. There are two things wrong with this:

1- There appears to be names of 7 days shown on the report but there are actually 6 days on the report (6x24) The first and last days are incomplete. The rest of "today" is not lived yet and more importantly the "first day" only includes tickets after 10:00 AM of that day. This is not obvious for the customers, they expect full days.
2 - As time passes through the day, I cannot have the same report again. Every minute passing changes my report from the starting point, filtering tickets according to a moving point in the middle of the day, so my reports are inconsistent.

The reports should allow me to set beginning and ending dates of reports and more importantly reports must contain full 24 hours for any day shown on report.