Yeah, it’s true that vanilla Bubble provides no facility for sorting date ranges, but you can do it with List Shifter. @gf_wolfer has a recent post where he describes in detail how to do this (and I couldn’t have written it better myself, so go have a look): New Plugin: TopCal - Dates, Ranges and Time Slots - #198 by gf_wolfer
(Also see my following note on how it’s not really perfect, but close enough for most applications.)