# Scheduling Parts of Kometa
Kometa allows you to schedule libraries, files, overlays, operations, and more so that runs can be tailored
to suit your needs.
This is particularly handy for users who have a lot of libraries or run a lot of Metadata/Operations on their libraries.
### IMPORTANT:
These schedules do not trigger Kometa to run; they control what Kometa will do if it happens to be running at the scheduled
time. `weekly(sunday)`, for example, does not mean "run Kometa on Sunday to do this thing"; it means "If Kometa is running,
and it's Sunday, do this thing".
If you want to control when Kometa itself runs, like if you want Kometa to only run on Tuesdays and Thursdays, see [this page](../kometa/scheduling.md).
The scheduling options are:
| Name | Description | Format | Example |
|:-------------|:--------------------------------------------------------------------------------------------------------------------|:---------------------------------------------------|:---------------------------------------------------------------------|
| Hourly | Update only when the script is run in that hour or hour range | hourly(Hour of Day)
hourly(Start Hour-End Hour) | `hourly(17)`
`hourly(17-04)` |
| Daily | Update once a day | daily | `daily` |
| Weekly | Update once a week on the specified days (For multiple days, use a bar-separated (|
) list) | weekly(Days of Week) | `weekly(sunday)`weekly(sunday|tuesday)
|
| Monthly | Update once a month on the specified day (multiple days not supported as a parameter) | monthly(Day of Month) | `monthly(1)` |
| Yearly | Update once a year on the specified day (multiple days not supported as a parameter) | yearly(MM/DD) | `yearly(01/30)` |
| Range | Updates whenever the date is within the range (For multiple ranges, use a bar-separated (|
) list) | range(MM/DD-MM/DD) | `range(12/01-12/31)`range(8/01-8/15|9/01-9/15)
|
| Never | Never updates | never | `never` |
| Non Existing | Updates if it doesn't exist | non_existing | `non_existing` |
| All | Requires that all comma separated scheduling options inside its brackets be meet in order to run | all[Options] | `all[weekly(sunday), hourly(17)]` |
* `daily` is the default when `schedule` is not specified.
* You can run Kometa multiple times per day but using the `--time` command line argument detailed on the [Run Commands & Environmental Variables Page](../kometa/environmental.md).
* You can have multiple scheduling options as a list.
* You can use the `delete_not_scheduled` setting to delete Collections that are skipped due to not being scheduled.
## Examples
??? blank "Scheduling a Library¶"