I want to choose between my local time, the monitoring service's time, or a manually entered time per monitored server or even per database.

For example, I am in EST, I have monitoring services in North America, Europe, and Asia. Each covers servers that are in different time zones within a monitoring server. Some have many databases, each of which could have users mainly from a different time zones within a region. When I look at a metrics chart, the first thing I want to know is if the issue I am looking at occurred within the users' normal work hours or not. It is a nightmare to figure out when everything is presented in my browser's local time zone, but the database is mainly used by people in New Zealand and is covered by the Asia monitoring service (which may have a time zone from China).