How do i set different bandwidth in Day/Night in PPPoE

I’m using PPPoE to provide internet to my clients. I want to provide double bandwidth to my clients at night time. how can i configure this. I’m not good with mikrotik. Somebody please give me the solution with example.
Thanks in advance.

What kind of bandwidth limiting do you use? Simple queues, queue tree or rate-limiting configured on the ppp profiles?

You can find some examples in the Wiki, for instance here: http://wiki.mikrotik.com/wiki/Limit_Different_Bandwidth_In_Day_and_Night

Thanks for replying.
I use PPP Profile to limit bandwidth. So, how can i do this?

So you’ve got a PPP profile for each tariff? For example profiles like DL1M_UL256k, DL2M_UL512k and so on?
If yes, I would suggest writing two scripts. The first script to set the daytime bandwidth to all PPP profiles and the second to set the nighttime bandwidth. Then schedule the scripts to run at proper times.

Exapmle scripts:

/system script
#name=”Day” source="/ppp profile set DL1M_UL256k rate-limit=1M/256k; /ppp profile set DL2M_UL512k rate-limit=2M/512k"
#name=”Night” source="/ppp profile set DL1M_UL256k rate-limit=4M/1M; /ppp profile set DL2M_UL512k rate-limit=8M/2M"