This is usually decided by the photographer. If your choice will be an outdoor family session, it is best to do it when the light is "soft". On a sunny day, the golden hour will be best - 45 minutes before sunset or moments after sunrise. That's when the light is soft, the colors are warm, and the sun gives the photo an atmosphere. This is the favorite time of day for many of you. On a cloudy or rainy day, any time is good.  The sun then hides behind a cloud, which is like a natural diffuser. It softens and diffuses the light so the shadows are soft. We do the session at home when the rooms are sunny, or in the evening if you create a lighting atmosphere.  We can go to the studio together at any time.