Looking in history, June 3, 7am CET it was. Just 6am UTC. Txs were below 10 per hour these hours, i was looking for NEMstake price in NXT wallet and i noticed this number. However we are a bit off topic.
You should sleep in.

Did you compair the other networks traffics at that time? Because I'm pretty sure that is the slowest time of the day in every cypto. It's beer run time on Bitcoin exchanges.