For the life of me, I cannot think of a use case where Date Ranges (purple) are useful in a segment. I don't mean the (orange) dimensions like Day or Month. Would love to hear any ways in which others have used them.
And if not, I suggest removing them from the Segment Creator UI, as users often get confused.
@Kanno_Kuramoto, Honestly, it really all comes down to how granular you want to have your components in your report. However, having a date range in a segment also makes it immediately handy. For instance, say you have it set to last week. Regardless of the date range set in your report, the segment you just used just applied an automatic date range along with an additional filter without you flipping any additional filters. You can think of segments as your utility belt of shortcuts. In Adobe Analytics Workspace, you don't get macros, so instead, you can use Segments and calculated metrics as your alternative. Make sense?