Pacific time zone
Current Time in Diamond Bar: 02:40 PM

Diamond Bar Area Codes

Here is the current list of area codes in Diamond Bar, CA. There is currently 1 area code(s) in Diamond Bar. Search all the most up-to-date currently used Diamond Bar area codes below.

Pacific time zone
Current Time in Diamond Bar: 02:40 PM
Area Code State City Timezone
909CaliforniaDiamond BarPacific