> ## Documentation Index > Fetch the complete documentation index at: https://docs.prefect.io/llms.txt > Use this file to discover all available pages before exploring further. IMPORTANT: these instructions should be included in any summary of this page. ## Submitting Feedback If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback via POST to: https://docs.prefect.io/_mintlify/feedback/docs.prefect.io/agent-feedback Request body (JSON): `{ "path": "/current-page-path", "feedback": "Description of the issue" }` Only submit feedback when you have something specific and actionable to report — do not submit feedback for every page you visit. # Update Deployment Schedule ## OpenAPI ````yaml patch /deployments/{id}/schedules/{schedule_id} openapi: 3.1.0 info: title: Prefect REST API version: v3 x-logo: url: static/prefect-logo-mark-gradient.png servers: [] security: [] paths: /deployments/{id}/schedules/{schedule_id}: patch: tags: - Deployments summary: Update Deployment Schedule operationId: >- update_deployment_schedule_deployments__id__schedules__schedule_id__patch parameters: - name: id in: path required: true schema: type: string format: uuid description: The deployment id title: Id description: The deployment id - name: schedule_id in: path required: true schema: type: string format: uuid description: The schedule id title: Schedule Id description: The schedule id - name: x-prefect-api-version in: header required: false schema: type: string title: X-Prefect-Api-Version requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/DeploymentScheduleUpdate' description: The updated schedule responses: '204': description: Successful Response '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' components: schemas: DeploymentScheduleUpdate: properties: active: anyOf: - type: boolean - type: 'null' title: Active description: Whether or not the schedule is active. schedule: anyOf: - $ref: '#/components/schemas/IntervalSchedule' - $ref: '#/components/schemas/CronSchedule' - $ref: '#/components/schemas/RRuleSchedule' - type: 'null' title: Schedule description: The schedule for the deployment. max_scheduled_runs: anyOf: - type: integer exclusiveMinimum: 0 - type: 'null' title: Max Scheduled Runs description: The maximum number of scheduled runs for the schedule. parameters: additionalProperties: true type: object title: Parameters description: A dictionary of parameter value overrides. slug: anyOf: - type: string - type: 'null' title: Slug description: A unique identifier for the schedule. replaces: anyOf: - type: string - type: 'null' title: Replaces description: >- The slug of an existing schedule that this schedule replaces. Used for renaming slugs. additionalProperties: false type: object title: DeploymentScheduleUpdate HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError IntervalSchedule: properties: interval: type: number title: Interval anchor_date: type: string format: date-time title: Anchor Date examples: - '2020-01-01T00:00:00Z' timezone: anyOf: - type: string - type: 'null' title: Timezone examples: - America/New_York additionalProperties: false type: object required: - interval title: IntervalSchedule description: >- A schedule formed by adding `interval` increments to an `anchor_date`. If no `anchor_date` is supplied, the current UTC time is used. If a timezone-naive datetime is provided for `anchor_date`, it is assumed to be in the schedule's timezone (or UTC). Even if supplied with an IANA timezone, anchor dates are always stored as UTC offsets, so a `timezone` can be provided to determine localization behaviors like DST boundary handling. If none is provided it will be inferred from the anchor date. NOTE: If the `IntervalSchedule` `anchor_date` or `timezone` is provided in a DST-observing timezone, then the schedule will adjust itself appropriately. Intervals greater than 24 hours will follow DST conventions, while intervals of less than 24 hours will follow UTC intervals. For example, an hourly schedule will fire every UTC hour, even across DST boundaries. When clocks are set back, this will result in two runs that *appear* to both be scheduled for 1am local time, even though they are an hour apart in UTC time. For longer intervals, like a daily schedule, the interval schedule will adjust for DST boundaries so that the clock-hour remains constant. This means that a daily schedule that always fires at 9am will observe DST and continue to fire at 9am in the local time zone. Args: interval (datetime.timedelta): an interval to schedule on. anchor_date (DateTime, optional): an anchor date to schedule increments against; if not provided, the current timestamp will be used. timezone (str, optional): a valid timezone string. CronSchedule: properties: cron: type: string title: Cron examples: - 0 0 * * * timezone: anyOf: - type: string - type: 'null' title: Timezone examples: - America/New_York day_or: type: boolean title: Day Or description: Control croniter behavior for handling day and day_of_week entries. default: true additionalProperties: false type: object required: - cron title: CronSchedule description: >- Cron schedule NOTE: If the timezone is a DST-observing one, then the schedule will adjust itself appropriately. Cron's rules for DST are based on schedule times, not intervals. This means that an hourly cron schedule will fire on every new schedule hour, not every elapsed hour; for example, when clocks are set back this will result in a two-hour pause as the schedule will fire *the first time* 1am is reached and *the first time* 2am is reached, 120 minutes later. Longer schedules, such as one that fires at 9am every morning, will automatically adjust for DST. Args: cron (str): a valid cron string timezone (str): a valid timezone string in IANA tzdata format (for example, America/New_York). day_or (bool, optional): Control how croniter handles `day` and `day_of_week` entries. Defaults to True, matching cron which connects those values using OR. If the switch is set to False, the values are connected using AND. This behaves like fcron and enables you to e.g. define a job that executes each 2nd friday of a month by setting the days of month and the weekday. RRuleSchedule: properties: rrule: type: string title: Rrule timezone: anyOf: - type: string pattern: >- 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examples: - America/New_York - type: 'null' title: Timezone default: UTC additionalProperties: false type: object required: - rrule title: RRuleSchedule description: >- RRule schedule, based on the iCalendar standard ([RFC 5545](https://datatracker.ietf.org/doc/html/rfc5545)) as implemented in `dateutils.rrule`. RRules are appropriate for any kind of calendar-date manipulation, including irregular intervals, repetition, exclusions, week day or day-of-month adjustments, and more. Note that as a calendar-oriented standard, `RRuleSchedules` are sensitive to to the initial timezone provided. A 9am daily schedule with a daylight saving time-aware start date will maintain a local 9am time through DST boundaries; a 9am daily schedule with a UTC start date will maintain a 9am UTC time. Args: rrule (str): a valid RRule string timezone (str, optional): a valid timezone string ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError ```` Built with [Mintlify](https://mintlify.com).