Select a date range when creating observations

[booksandcookies]

It would be useful for time lapse gifs that take place over a number of hours or days, as well. Currently there doesn’t seem to be an accurate and non-confusing way to upload observations like this, as is being discussed here: https://forum.inaturalist.org/t/how-should-i-make-time-lapse-observations-for-molds-growing-over-days-time/14488/6