I can clarify this for you.
QuickBooks time and date depends on the settings of your computer.
When printing reports, QuickBooks converts the time based on the timezone of our server which happens to be GMT -7 or Mountain Standard Time.
That answers your concern for today about the date and time on your reports.
Please let me know if there's anything I can help you with your reports in QuickBooks Online. I'm always around whenever you need help.