I got a similar but incorrect result from ChatGPT: "So, the expression "0 30 5 * * 3" means that the command should be executed at 5:30 AM on the 5th day of every month, but only if that day is a Wednesday"
However, the crontab is invalid. It has five fields instead of six, and the 30 corresponds to the hour field.
"30 5 * * 3" without the leading zero, would correspond to run every Wednesday at 5:30 AM though. I suspect the fact that it has six fields instead of five is confusing it, and it's interpreting the 5 as a day of the month and as the hour
However, the crontab is invalid. It has five fields instead of six, and the 30 corresponds to the hour field.
"30 5 * * 3" without the leading zero, would correspond to run every Wednesday at 5:30 AM though. I suspect the fact that it has six fields instead of five is confusing it, and it's interpreting the 5 as a day of the month and as the hour