Hi We have custom Participant object and custom timezone field(pick list - cetral , eastern arizona and pacific ). for each particiipat , particiipant address (state and zip code) is stored in child object called participantdetail. when new participnat is created , how do i populate the time zone field with thier timezone ( i have the zip code in address and is it possible to populate the timezone field using the zip code ) or any other way. .
