6:40 Shacharis, although we’re davening at 6:45 this week (putting on tallis and tefillin at Yishtabach). When the time changes this Sunday, we’ll move it back to 6:40 again.
I like this time for davening. We have a shul gamara shiur at 6am every day. I find that helps my kevanah for davening.
Minchas is 20 minutes before shkia. Then we learn for 15 minutes, then Maariv. I repeat 3 paragraphs of shema before I go to sleep each night.