Does anyone here consistently walk 10k in one walk/workout? How long does it take you?

For reference, I am 5'4, and typically walk on the tread anywhere between 3.8-4.0 mph. 3.5 on days when I am barely getting by.

I started at 174, currently at 150. I want to be 135 by the end of it!

I started this journey by just walking, but i would only go for about 45min-1hour and it was outside primarily, so I am not sure about speed. Now I mostly walk on the tread and watch a show. My timing and speed have not so much changed, but my deficit has gradually decreased just based on what the Lose It! app adjusts it to each time I log a new weight.

I want to try walking 10k in one walk per day, but just wanted to get a gauge on timing, because my work schedule may not allow this for me depending on how long it takes.