Netro's algorithm is based on expert gardening knowledge, one of which is to avoid watering equally everyday and instead to water less frequently but deeply. Netro waters your garden only when the soil is dry enough in order to draw more oxygen into the roots, leading to a lusher landscape. By default, we allow the moisture level to deplete to a low level (recommended by EPA) before next watering and that is why you might see longer watering duration than the original settings on your old controller.
We found you have created your own programs. FYI, if you need more information about Netro scheduling, please refer to this article https://netrohome.com/forum/posts/111