Some brokers like LMAX prepeared it’s system for night traders. They are charging swaps when most of Night EAs are starting it’s work.
So you are saying LMAX will charge swaps before new day starts? I don’t think i saw any other broker doing that.
I asked support about this 5 minute freeze. Below is their answer:
@LMAX support wrote:
“We close for 5 minutes each day to perform system maintenance, so that we can provide a better services.”