It is currently impossible to see transaction times in the standard 24h format - instead 20:00 it is always displayed as 8:00 pm.
I saw there was a feature request for this already - https://feedback.koinly.io/feature-requests/p/display-time-in-24hr-clock - that was closed as complete(which I do not agree with).
What I want from this feature request is a toggle in the account settings to set time display format as 24h in the transactions view.