Odoo doesn’t track time directly on quotations by default. However, it provides Timesheet and Project integration that you can adapt for this use case.

Step-by-Step Solution

Option 1: Link Quotations to a Project Task

1. Enable Project and Timesheets:
   • Go to Apps → Install Project and Timesheets.
2. Create a Project for Pre-Sales Activities:
   • Project name: Quotations / Sales Engineering
3. Automatically Create a Task per Quotation:
   • Customize the sale.order model using Studio or custom module:
     • Add a button: “Create Task”
     • Link task to a predefined project.
     • Assign task to the salesperson.
4. Log Time on That Task:
   • Use the Timesheets app to log time spent on the quoting task.

Option 2: Custom Field for Manual Input

• Add a custom float field like quote_hours_spent on sale.order.
• Use it to enter hours manually if full timesheeting is not needed.

There is no functionality for tracking the hours spent; However, you need a customized module.