Running a cron job 3 times (8:30 AM, 5:30 PM and 11:30 PM for example)?

Question

0.00/5 (No votes)

See more:

I am not sure how to run a cron job at 3 specific hours every day. I want to run it at 8:30 AM, 5:30 PM and 11:30 PM

Ideas how that might work? Is it possible at all in one expression?

Posted 12-Jun-14 19:06pm

saumil.sapariya

Updated 12-Jun-14 19:07pm

v2

Add a Solution

Comments

DamithSL 13-Jun-14 1:26am

Are you using any library or external tool for scheduling?

saumil.sapariya 13-Jun-14 2:48am

I am currently using Quartz.dll for scheduling.

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

phil.o · Answer 1 · 2014-06-12T19:39:00

Solution 1

No, there is no math (at least no simple one I can think of) allowing to go from 8:30 AM to 5:30 PM then 11:30 PM.
But nothing prevents you from entering three entries in your cron table.

Posted 12-Jun-14 19:39pm

phil.o

erm3nda · Answer 2 · 2015-07-14T19:18:00

30 5,8,11 * * * my-command
This means hours 5, 8 and 11 at minute 30.

A problem would be if you wanna 5:00, 8:30 and 11:00...
CRON does not handle options but you can do it from your file if you run the comand each minute 0 and 30, so you can handle these 2 points of start.

It's so easier to split tasks and harder to create rules based on time.

Member 15764558 · Answer 3 · 2022-09-11T22:07:00

Solution 6

0 30 8,17,23 ? * * *
^ should work. This is saying: At second :00, at minute :30, at 08am, 17pm and 23pm, of every day.

Give it a try.

Posted 11-Sep-22 22:07pm

Member 15764558

Updated 11-Sep-22 22:37pm