Traffic shaper sheduler / interface limiter?

[toomeek]

Hello,

I have internet from local cable ISP. It has 2 scheduled speeds:

• daily from 12:00 to 00:00 10Mbit up / 2Mbit down
• nightly from 00:00 to 12:00 20Mbit up / 2Mbit down

Now I'm wondering how to set shaper for this. If I set 20/2 and use HFSC for example this will cause high latency times during day under heavy load.
If I set 10/2 this will limit bandwith at night. Any ideas?

Also, recently I received for tests LTE modem: Modem Speed 1000, USB stick. ISP gives 12GB per month for it. How to limit whole transfer per month in pfSense?