# timings.yml reference > Every key of the timings file: named timings schedules share. The timings file, `timings.yml`: timing names mapped to timings that any schedule can use with `timing: `. Where: `timings.yml`. For editor autocomplete and validation, add this as the first line of the file ([editor setup](https://getdre.com/docs/editor-setup/)): ```yaml # yaml-language-server: $schema=https://getdre.com/schemas/v0.1/timings.schema.json ``` The file maps names to entries; each entry has these keys. ## Keys Key Type Default Description `cron` string A cron expression (5 fields, or a macro such as `@daily`). A timing needs exactly one of `cron`, `every` or `rrule`. `every` map (see below) Every N days, weeks or months, with exactly one unit, e.g. `{days: 3}`. `rrule` string An iCalendar recurrence rule, e.g. `FREQ=MONTHLY;BYDAY=2TU`. Use `starting` for a rule with `INTERVAL` above 1 or `COUNT`, and `at` for its time of day. `starting` string With `every` or `rrule`: the first date, `YYYY-MM-DD`. `every` needs it, and so does a rule with `INTERVAL` above 1, a `COUNT`, or a day it takes from its start. `at` string With `every` or `rrule`: the time of day, `HH:MM` (24-hour), unless the rule sets `BYHOUR`/`BYMINUTE`. Default: 00:00. `except` list of string Dates (`YYYY-MM-DD`, in its timezone) it doesn’t fire on, e.g. holidays. `also` list of string Extra dates (`YYYY-MM-DD`) it fires on, at its time of day in its timezone. Needs a timing that fires at one time of day. `timezone` string The timezone it fires in, an IANA name such as `Australia/Sydney`; schedules using the timing also run in it. Default: the project’s `timezone:`, then UTC. ## `every` Every N days, weeks or months, with exactly one unit, e.g. `{days: 3}`. Key Type Default Description `days` integer Every this many days. `weeks` integer Every this many weeks. `months` integer Every this many months. [Edit page](https://github.com/get-dre/dre/edit/master/docs/reference-timings.md) [Previous schedules.yml reference](https://getdre.com/docs/reference-schedules/)[Next profiles.yml reference](https://getdre.com/docs/reference-profiles/)