Birthday etiquette (modern guide)
Updated August 20, 2025
Overview
This guide explores birthday etiquette (modern guide) with steps you can verify using the AgeByDOB calculator. For deeper context, you may also enjoy Setting goals before your next birthday · How old is Lionel Messi today? (worked example) · How leap day birthdays celebrate Feb 29.
Key Takeaways
- Use the native date picker for accuracy on mobile and desktop.
- Read your age in years, months, and days for exact results.
- Bookmark your result URL so you can revisit quickly.
Step-by-Step
- Open the calculator and enter your DOB.
- Press Calculate to get the exact breakdown.
- Check the birthday countdown and milestones.
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