Season 1

Namaste Power BI

Episode 10

Date Table & Time Intelligence

⏱ 35:00

Episode Summary

Building a proper date table, marking it correctly, and enabling time intelligence in DAX. The foundation for YTD, MTD, rolling averages, and period comparisons.

This is Episode 10 of the free Namaste Power BI course on DevWithData — covering date table & time intelligence. Watch the video above, then pass the MCQ checkpoint to unlock the next episode and update your Data Readiness Index score.

Key Takeaways

→Every model needs a dedicated Date dimension table
→Date table must have contiguous dates with no gaps
→Mark as Date Table tells Power BI to use your custom date table
→Once marked, TOTALYTD/SAMEPERIODLASTYEAR/DATEADD all work correctly

⚠ Common Interview Pitfalls

•Using auto date/time (creates hidden tables, bloats the model)
•Having gaps in your date column (breaks time intelligence silently)
•Forgetting to mark the table as a Date Table

Official Reference

Deepen your understanding with official Microsoft documentation.

PL-300 Official Training Course

Microsoft's official instructor-led training for the Power BI Data Analyst certification.

https://learn.microsoft.com/en-us/training/courses/pl-300t00

Power BI Documentation

Complete reference for Power BI Desktop, Power BI Service, and Power BI Embedded.

https://learn.microsoft.com/en-us/power-bi/

Content on DevWithData is original and inspired by official Microsoft resources. The links above point directly to Microsoft Learn — always the authoritative source.

← Ep 9: Relationships & Filter Flow

Ep 11: Calculated Columns vs Measures →

Episode Checkpoint

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