Birthday Countdown Calculator
Jenzzy counts down to the upcoming birthday and shows the weekday it falls on.
Inputs
Results
Enter values to see results.
Formula
Next birthday = next occurrence of birth month/day after today
If birthday passed this year, target next calendar year.
Example
- Next birthday: Aug 20, 2026
- Days left: 70 days= 70 days
Result: 70 days until August 20 birthday
Frequently Asked Questions
Feb 29?
Next celebration date may vary by preference.
Time zone?
Use local date for party planning.
Age turning?
Shows upcoming age if enabled.