dear all
we are carrier level class user o zabbix,. we use customized working hours Bar report by executing database query .
this process is to hard to develop and must grant access for executer of query,

parameters for that query are> itemid(i.e. average number of a link bandwidth),start day(YYMMDD),end day(YYMMDD) ,working hours( 8-16)
returned values> average bandwidth of working hours from start day to endday

this graph is very usefull for capacity planning of our company