Cron Expression for scheduled Alert

[jackin]

Hi 

Please help me to build cron expression. thanks in advance

Alert runs Every 15min from 8am to 18pm, Everyday

Alert runs Every 15min from 4am to 18pm weekdays only

Alert runs Every 15min from 8am to 18pm weekdays only

Alert runs Every 15min from 9am to 17pm weekdays only

Alert runs Every 15min from 8am to 18:45pm weekdays only

Alert runs Every 15min from 23:01 pm to 18:59pm Everyday

Alert runs Every 15min from 12am to 12:59am and 6am to 6:59am Everyday

Alert runs Every 15min from 8am to 8:59am and 13pm to 13:59pm Everyday

Alert runs Every 15min from 10am to 6:59am Everyday

Alert runs Every 15min from 7am to 23:59pm Everyday

Alert runs Every 15min from 8am to 10:59am Everyday

[PickleRick]

You can't write some of them as a single cron schedule.

For example - if your frequency is "every 15 minutes", you can't run it from something :00 till something else :59. Your latest occurrence would be :45, not :59.

Amd, since you can only specify how each datetime part changes on it's own, you can't do "every 15 minutes from something :00 up to and including something else :00". If you specify both ranges/generators or whatever you call them for hours and for minutes they will both get expanded separately.

So

*/15 7-9

(To only focus on minutes and hours, forget the other parts of cron spec)

will generate times from 7:00 up to 9:45. There is no way to include just 10:00 without 10:15, 10:30 and 10:45.

You'd neeed a separate schedule just for 10:00.

[jackin]

Thankq @PickleRick 

Can you help in below updated sheet

Alert Every 15min from 8am to 18pm Everyday

Alert Every 15min from 4am to 18pm weekdays only

Alert Every 15min from 8am to 18pm weekdays only

Alert Every 15min from 9am to 17pm weekdays only

Alert Every 15min from 8am to 18:45pm weekdays only

Alert Every 15min from 23:00 pm to 19pm

Alert Every 15min from 12am to 1am

Alert Every 15min from 6am to 7am

Alert Every 15min from 8am to 9am

Alert Every 15min from 13pm to 2pm

Alert Every 15min from 10am to 7am

Alert Every 15min from 7am to 12am

Alert Every 15min from 8am to 11am