Hello,

Have you try with tz_format ? From memory, it exists since saas-3 (So, it will not work in V7 :( ).

Example;

${format_tz(object.name,object.employee_id.address_id.tz or 'Europe/Brussels','%m/%d/%Y %H:%M')}

Info:

function format_tz(datetime, tz, format)}

datetime is required:
    Be aware that this will only work with datetime. Not a string, or a date    

tz is optional, function uses:
    - tz param
    - current user tz 
    - UTC

format is optional, function uses:
    - format param
    - format on lang in context
    - '%B-%d-%Y %I-%M %p (tz)'