Orchestrator API - Queue item filter for StartProcessing and EndProcessing

Check this example and adapt it:

https://ORCH_HOSTNAME/odata/QueueItems?$orderby=Id%20desc&$top=1000&$filter=((QueueDefinitionId eq QueueID and (EndProcessing eq 2022-08-09 and StartProcessing eq 2022-08-09)))

More details here:

Date Functions OData Version 4.0. Part 1: Protocol Plus Errata 03 (11.2.5.1.2 Built-in Query Functions)

Building API Requests examples: Building API Requests