In Whenever gem, if we use every :month, does it mean the end of month or beginning?

Question

When using the whenever gem we can set a monthly job like this :

every :month do
    ...
end

Will this run the job at the end of the month or at the start of the month? I want to run it at the end.

That will probably be the easiest. The hardest part of that might be interpreting the arcane crontab syntax, but [there are tools](http://www.cronchecker.net/) for that — 3Doubloons, May 17 '15 at 14:35

score 8 · Accepted Answer · edited May 23 '17 at 12:33

assert_equal '0 0 1 * *',  parse_time(:month)

So :month will generate a cron entry that looks like 0 0 1 * *..

One way to make the job run last day of the month would be to use the raw cron entry in wherever as follows:

every '0 0 L * *' do
  ...
end

This assumes that the cron on the server supports the L flag for representing the last day of the month.

See Cron job to run on the last day of the month for more about running a cron job on the last day of the month.

1 Answers1