The Cronslab is a new redstone block for highly configurable redstone scheduling. Similar to cron, you can set it to emit a signal based on the given tick, second, minute or day.

!An image of the Cronslab GUI, showing an example expression and a 'to English' description.

Some examples:

• Every twenty-five ticks: */25 * * *
• 5 tick pulse every two second: 0-4 */2 * *
• During all of every other day: * * * 0/2
• During all of every day not covered by above: * * * 1/2
• 3 pulses 8 ticks apart, every 5 seconds: 0,8,16 */5 * *
• Every real-life hour: @hourly (alias of 0 0 */60 *)

For a more detailed overview of the syntax, features and other quirks see the wiki.