---
title: Scheduler Implementations
framework: foundation
role: collectionGroup
role_heading: API Collection
path: foundation/operationqueue/scheduler-implementations
---

# Scheduler Implementations

## Topics

### Structures

- [OperationQueue.SchedulerOptions](foundation/operationqueue/scheduleroptions.md)
- [OperationQueue.SchedulerTimeType](foundation/operationqueue/schedulertimetype.md)

### Instance Properties

- [minimumTolerance](foundation/operationqueue/minimumtolerance.md)
- [now](foundation/operationqueue/now.md)

### Instance Methods

- [schedule(after:interval:tolerance:options:_:)](foundation/operationqueue/schedule(after:interval:tolerance:options:_:).md)
- [schedule(after:tolerance:options:_:)](foundation/operationqueue/schedule(after:tolerance:options:_:).md)
- [schedule(options:_:)](foundation/operationqueue/schedule(options:_:).md)