File:Month - Knuckles (en).svg

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Summary[edit]

Summary
Description	Image to remember how many days a month has. This pattern also correlates to the white & black keys of the twelve notes in the musical scale on a piano. An alternative hand mnemonic for the months in the Gregorian calendar is here: Calendar Hand Mnemonic - Musical white keys-black keys.png
Source	Wikimedia Commons file page
Author	Tijmen Stam / IIVQ
Permission	See original Commons license details.

Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)

This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 license.

Official license: CC BY-SA 3.0

License page: CC BY-SA 3.0

Original attribution and file history: Wikimedia Commons

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	03:21, 5 June 2026		450 × 220 (43 KB)	Maintenance script (talk \| contribs)	== Summary == Importing file

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Width	450
Height	220