Announcement Time Specific to User Settings

Hello,

We occasionally run different events in the community, and/or need to announce outages on the site that are expected to take more than a few minutes. 

Does anyone know of any code that I can use when adding text to the community announcement section that will pickup a users setting for time zone and potentially convert a time so that it's specific to them?

Ex: 'Fusion Answer Day happening at 10 AM PT', cloud be 'Fusion Answer Day happening at 5 PM UTC' for someone with UTC selected as their time zone.

Being a global company it's tough to come up with a solution that is relevant for all.