See Moment JS for detailed locale support.
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://xmlns.jcp.org/jsf/html" xmlns:f="http://xmlns.jcp.org/jsf/core" xmlns:b="http://butterfaces.org/components"> <h:head /> <body> <h:form id="formId"> <b:calendar id="input" label="label" hideLabel="false" value="null" pickDate="true" pickTime="true" sideBySide="false" placeholder="Enter date or click icon..." readonly="false" required="false" disabled="false" autoFocus="false" rendered="true"> <b:tooltip placement="top"> tooltip </b:tooltip> </b:calendar> </h:form> </body> </html>