Cron Job doing what it wants

I used cron job several times and I googled how to correctly use it, but my command here executes in different times whenever it feels like doing so.
The picture shows the code that triggers it
For the past 10 weeks, it triggered on a Sunday at 22:54, Monday 20:32, Thursday 17:56 and so on (not at the time I want it to trigger)
Today it triggered on a Tuesday at 18:00 which is the time I put in.
I want it to run without problems, anything you know of?
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