I have wondered too, especially because I have used it a long time ago. But the day sequence is also a good substitute as you can set it to not have a day sequence (always be at the same point in time; frozen) and then continue as normal. I don’t know if this is intended by Epic, but at least we have a good replacement.
See I thought it was the same device now too but I reached out to epic support and even they didn’t understand why it was missing and didn’t know how to help and referred me to the forum discord or something. I wanted the skydome to create a frozen same point in time kind of deal. and have two of them so players can switch between night and day. seems like im sol on this one lol