Basically you could create an automation that is triggered when there is a new record in the days table. The automation would use the 'find records' action and the 'update record' action. 'find records' would find the Week record based on the date of...
your english is great.I would create another table called weeks. Create one record for each week. Link each day to the respective week. You can do the linking with Automations. Add a rollup field in the weeks table that sums the linked durations. Add...