Month and day are mixed up

There's an example in docs: --start='23/1/2015 12:00', which states that this means 23-th of January.
After few simple experiments I've found that this leads to trying to fetch oldest logs possible.
When I was trying to fetch logs for 2-nd of October (--start '02/10/2021 17:00') I was getting oldest possible logs.
When I've changed it to --start '10/02/2021 17:00' - got logs starting from 02 October.