I feed similarly to you and have always (with both boys) bather just before bedtime feed... ie when i out them down for the night (even though they will still wake every 3 hrs). so around 6.30pm it is now...
I usually when they are really small give one side, then feed and then the other side - this stops them from being too hungry during the bath. i did it daily bc part of bedtime signals.. sometimes it is quick!
DS2 loves his bath, DS1 didnt like it - we started showering him at 10 days old.. (still did it in the evenings)
this is what has worked for us...