Scheduled path time source and offset
Key Takeaway
A scheduled path's timing comes from two settings: the Time Source and the offset. A path can run before a point in time only when its Time Source is a date or date/time field on the triggering record.
A scheduled path lets a record-triggered flow run some of its elements later instead of right away. The Time Source is the starting point for the clock, and the offset is how long before or after that starting point the path runs.
What a scheduled path is
A scheduled path is a separate path in a record-triggered flow. The record change triggers its actions, but they run after a period of time, such as minutes, hours, days, or even months later.
You add one in the flow's Start element with "Add Scheduled Paths (Optional)". Scheduled paths are available only in record-triggered flows optimized for Actions and Related Records, so a flow built with a different optimization can't use them.