This integration provides Actions, not Google Tasks webhook triggers.
Google Tasks due dates do not include a time of day.
Google Tasks Workflow templates
Tally · Google Tasks
Create Google Tasks from new Tally submissions
Create one task for each new completed submission to selected Tally forms. Connect Tally and Google Tasks, select the forms and a task list. The task title uses the form name; notes include the submission ID and timestamp. Add your own form-answer mappings if needed. Existing submissions are not backfilled. Manual reruns may create duplicate tasks. Pausing stops the Tally subscription when no active consumer needs it. Google Tasks has no webhook subscriptions of its own.