This question already has an answer here:
Using Ubuntu 16.04. I like Krusader, but can't figure out how it is possible to change date/time format for the Modified column. I truied to change system regional settings, but Krusader ignores them (while, e.g., Midnight Commander uses system settings). Switching application language (in Help menu) also does not affect the date/time format. I like the 24-hour format, not PM/AM, and I may prefer even to hide time, and leave only date. Is that possible in Krusader?
The other post is of no help, as there is no even such file in mys systems as ~/.kde/env/setlocale.sh