CRON expression for EVERY 3RD WEEKDAY

LRobinson_5yseoz

Hi  

 

I'm trying to create to a CRON expression to run on the following:

every 3rd weekday at 8:30am

 

0 30 8 4/3W * ?

I've tried this but it doesn't like the W after the '/'

 

Any help would be must appreciated!

 

Many thanks  

Trudy P Claspill

Hello @LRobinson 

You have misunderstood the use of W.

3W will give you weekday closest to the 3rd day of the month, not the 3rd weekday of the week, as per this documentation.

4/3 in the Day of Week position will give you "every 3rd day of the week where day 4 (Weds. because the days of week are 1-7 / Sun-Sat) is considered the first day of the week. The net in this case is "every Friday", I believe.

If you want to set a CRON for the third weekday of every week, I think you will have to specify which day that is the third weekday of your week.

Sec	Min	Hr	day of month	month	day of week
0	30	8	?	*	WED