according to the API, it looks like you may have manually recorded the observation date as “2020-08-24 9:40:53 AM GMT+03:00”. i’m guessing the system might not be expecting “GMT” with an offset after. (it might be expecting either an alpha time zone or an offset, not both.) what happens if you edit the observation time as “2020-08-24 9:40:53 AM +03:00” or “2020-08-24 9:40:53 AM MSK” instead?
just for reference, the original bug report associated with the GitHub issue noted above is https://forum.inaturalist.org/t/daylight-savings-time-not-shown-in-list-mode-on-website/21283. that thread actually seems to contain 2 separate issues, but it might worth tracking this bug report and that one together.