What is minimum time interval for which a cron be scheduled?

WP-Cron ist not a fully fledged cron implementation or something. It’s actually rather simple.

On every page load, a list of scheduled tasks is checked to see what needs to be run. Any tasks scheduled to be run will be run during that page load.

By default, tasks can be scheduled to be run hourly, twice a day or daily. That can be changed to anything though, see wp_get_schedules().

WP-Cron does not run constantly as the system cron does; it is only triggered on page load. Scheduling errors could occur if you schedule a task for 2:00PM and no page loads occur until 5:00PM. In that case, scheduling cron to run every minute is pointless and you should look at setting up a proper system cron job.

However, there’s rarely a case where you need to set up a cron to run that often. Running it every 10 minutes or so should be totally fine.

Related Posts:

  1. Which action for triggering cron “wp”or “init”?
  2. wp_schedule_event in a class
  3. WP Cron – Run Cron after evey 15 minutes at a specific time for the next three hours
  4. Using wp_cron with custom time interval and the register activation hook
  5. WordPress scheduled task is called but not executed
  6. Problem creating cron job wordpress
  7. How Do I Make WordPress Run an Event Every Day?
  8. How can I change the frequency of a scheduled event?
  9. Hourly WP schedule, do I need at least 1 visitor hourly?
  10. WP Cron doesn’t save or in post body
  11. Is there any background process that I can run from plugin without depending on page hits on a website without affecting page-load speed?
  12. WordPress cron running twice
  13. Scheduling a task using class methods
  14. Will cron job run if page loaded is being served from cache?
  15. Use wp_set_post_terms() instead of wp_insert_post()
  16. Programmatically detect if wp-cron is disabled?
  17. How to schedule a cron job in plugin without waiting for page load request?
  18. How to perform a heavy and long process in cron jobs?
  19. WordPress daily cron is executing more frequently than once a day
  20. wp-cron and execution of code in is_admin() included script
  21. How to Trigger WP CRON at Local Timestamp?
  22. WP Cron being triggered but not working as expected
  23. wp_schedule_event() set daily, but processed every second
  24. Will I get an error if I try unscheduling a WP Cron scheduled task that wasn’t scheduled?
  25. Looking for a better way to initiate cron job
  26. WordPress plugin cron working only if admin is logged in
  27. How to make a cronjob type plugin
  28. wp_schedule_single_event is set correctly but sometimes not fired
  29. How to Run Plugin on Server Without Web Browser
  30. Plugin with functions inside a class & how to trigger WP CRON
  31. Custom recurrence not working / Wp Cron event
  32. How and when would I implement some code which would take data from one part of the Db and put it in another?
  33. WP Cron as Fast as WordPress AJAX?
  34. Detect each active instance of a widget
  35. What is the use of wp_schedule_event hook?
  36. Can wp_schedule_single_event be used to run background proccess?
  37. Call do_action() within WordPress cronjob
  38. Running one-off cron jobs when WP_DISABLE_CRON is true: can I hit /wp-cron.php?
  39. wp cron does not run when i am not logged in to wp admin
  40. How to override existing plugin action with new action
  41. Add custom TinyMCE 4 Button, Usable since WordPress 3.9-beta1
  42. How to store username and password to API in wordpress option DB?
  43. Which hook should be used to add an action containing a redirect?
  44. Is it worth checking if class_exists when developing a plugin and how to do it?
  45. Default table collation on plugin activation?
  46. the_content after all shortcodes are parsed
  47. How to auto-upgrade my plugin?
  48. How do I resolve Notice: Undefined offset: 0 in /wp-includes/capabilities.php on line 1145
  49. Category listing with thumbnail and description on home page
  50. How to Add a .js file Only in one specific Page Dynamically to Head
  51. How can the tinyMCE dom be manipulated (offical API does not seem to work)?
  52. Deletion of shared options using uninstall.php
  53. Pass javascript result to shortcode executer function
  54. URLs of plugin resources?
  55. anything like add_meta_box for categories?
  56. Plugin Settings not Saving on Ajax re-ordered table
  57. Can we create a category list page in WordPress?
  58. How to include class from addon after to be sure one class exists in the main plugin?
  59. Developing a plug-in to charge for
  60. WordPress: After Gutenberg plugin migration to block.json the localization/ translations with PolyGlot in JavaScript does not work anymore
  61. What is the Difference between directly call a function and call a function using add_action?
  62. What is better way to use Bootstrap inside admin panel?
  63. Undefined function wp_set_password
  64. Updating my plugin without releasing a new version
  65. Is it possible to check is loaded language files correctly with WordPress plugin?
  66. Prevent plugin from deleting important directories
  67. 404 errors after plugin options update and category base change
  68. Default category got deleted. How to get it back as ID=1?
  69. How to determine, from plugin script, if active theme has The Post Title
  70. What allows a template file from plugin to be copied in child theme and overridden?
  71. Order properties should not be accessed directly
  72. How to avoid loading same script twice?
  73. Is there any way to check for user login and send him to login?
  74. Executing a function upon webhook calling wordpress
  75. How to display additional info in the plugins admin table?
  76. Why is my javascript not invoked in my hooks except wp_head?
  77. How to Create database table when Plugin installed/activated, and delete database when Plugin deleted
  78. Where to store the name of a custom table?
  79. Backbone event attachment:compat:ready can’t hook
  80. Add a class to a dynamic sidebar’s wrapper
  81. Limit role to one plugin [duplicate]
  82. How to fix Uninitialized string offset: error on a checkbox in WP Settings API
  83. Upgrade private plugin without deleting files?
  84. Issue regarding $wpdb->prepare()
  85. Saving value of a selection option in comment form as comment meta
  86. Is there some way to provide the user a list of existing content in a CPT
  87. Issue with querying
  88. how to search users by ajax live search
  89. Generate JSON files for language translation from po file without wp-cli i18n make-json
  90. What is the proper method of using global $post?
  91. Is this best practice for Dynamically adding items to WordPress menus?
  92. There is a problem in the gutenberg block I developed. Problem is with withInstanceId
  93. Detect front-end pages only in init hook
  94. how to add stylesheet to particular plugin only?
  95. best way to make a WordPresss multisite that is secure but at the same time supporting my plugin development efforts
  96. How to change title tag at page after loaded post?
  97. How to get post content by get_posts function?
  98. Getting following web services error after activating the Rewards Plugin
  99. WordPress custom taxonomy check box to dropdown
  100. Creating Admin Plugin – Content of a page is displayed at global scope as well