script and schedule to allow/block facebook for certain time

RouterOS Scripting
1

hi all,
i have read and trial a lot of ways to block and allow facebook in my office for certain time of day.but the script I scheduled doesn’t work.Please help yaar…totally frustrated.

2

first add a new rule

/ip firewall filter
add action=drop chain=forward comment="block facebook from 12 to 12:33" content=facebook time=\
    12h-12h33m,sun,mon,tue,wed,thu,fri,sat

and then edit the rule for your time.