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Home » General Tags » Power Query » M Functions » M Date Functions » Date.Year

Date.Year

Extracts the year from a date value in Power Query.

Identify Yearly Repeat Customers
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Identify Yearly Repeat Customers

Challenge No. 636: Find the unique repeat customers in a year.
Solved using: Python.

January 14, 2026July 21, 2025
Extract Complete Months
Posted in
  • Crispo Challenges
  • ⭐️ Beginner

Extract Complete Months

Challenge No. 32: Calculate the number of complete Months per Year per Project
For example, Proj A starts in 2022 (for 10 months), 2023(12 months), Ends 2024(6 months)
Dynamic array function allowed, but Extra marks for Legacy solutions or PowerQuery Solution.
Solved using: R.

May 24, 2025July 11, 2025
Avg Cooperation Time!
Posted in
  • Date & Time Handling
  • Excel Challenges
  • Omid Challenges
  • Power Query Challenges
  • ⭐️ Beginner

Avg Cooperation Time!

Challenge No. 108: Calculate the average cooperation time in months for those who are still with the company (do not have value on column leave date) as of 16/08/2024, categorized by their respective levels.
Solved using:Excel (AVERAGE, FILTER, HSTACK), Google Sheets, Power Query (Date.Month, Date.Year), Python, Python in Excel, and R.

May 20, 2025July 11, 2025
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BYROW CHAR CODE CONCAT DROP FILTER HSTACK IF IFERROR INDEX LAMBDA LEFT LEN LET List.Distinct List.Transform LOOKUP MAP MATCH MAX MID MONTH Python Python Automation Python for Data Analysis Python for Excel REDUCE ROW ROWS SCAN SEQUENCE SORT SUBSTITUTE Table.AddColumn Table.Group Table.SelectRows TAKE Text.Combine Text.Split TEXTJOIN TEXTSPLIT TOCOL UNIQUE VSTACK XLOOKUP

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  • By Difficulty
    • ⭐️ Beginner
    • ⭐️⭐️ Easy
    • ⭐️⭐️⭐️ Intermediate
    • ⭐️⭐️⭐️⭐️ Advanced
    • ⭐️⭐️⭐️⭐️⭐️Expert
    • ⭐️⭐️⭐️⭐️⭐️⭐️Complex
  • By Topic
    • Advanced Mathematics Problem
    • Aggregation & Summarization
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    • Column Transformation
    • Custom Grouping
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    • Financial Problems
    • Indexing & Ranking
    • Merging & Joining
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    • Text Processing
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