Timezone mismatch in reporiting graphs

The reporting graphs use different timezones to display various times.

In the attached screenshot the system is in the Central time zone and the browser is in the Pacific timezone, two hours behind.

The graph X-axis labels are in the browser timezone, the "Start" and "End" times are the system timezone, and mousing over a datapoint prints the "Time" in the browser timezone again.

Pick one, report what it is, and stick to it anywhere a time is displayed.