maxExecutionTime

Approximate wall-clock budget the platform gives this invocation.

  • Android Standard: ~10 minutes.

  • Android Expedited: ~10 minutes (foreground job).

  • iOS Expedited (BGAppRefreshTaskRequest): ~30 seconds.

  • iOS Standard (BGProcessingTaskRequest): "several minutes".

  • macOS: system-determined; we report a conservative estimate.

Not enforced by the library — it's a hint for worker code to budget against.