I would estimate a job like this a little longer. No need to rush this part, it's the most important asset to footwear. Its responsible for the function/use, comfortabilty, form, strength and durability. So this must be done efficiently and effectively.
I advise pulling apart the soles until you meet where they are joined. Starting from this point is best. Just observe the faces of the two soles and clean away any dirt and debris. Be sure to allow the footwear to dry before continuing with adhesive. Use a strong and durable adhesive to bond the two soles together. Be careful as some adhesives tend to swell after curing and this can cause discomfort and render footwear useless. Completely cover the face of both soles. Dont worry about excess just wipe away as you squeeze them together and hold. Be sure to clamp footwear soles for the duration of the curing process to prevent and leaks cracks. Then finish off with water/stain repellent to repel moisture and increase the life of the glue repair.