Not triggered with month specific crons

[frankforpresident]

I've noticed when I use crons that are month specific, they aren't executed. Only when using alterative single values it does work.

What doesn't work: 9,29,49 * * 6 *

What does work: 9,29,49 * * JUN * 9,29,49 * * * *

[tjpgt]

In the doc you can see: Months: 0-11 (Jan-Dec)

So 6 means July.