Short to Long Date Converter
Choose the short input convention, enter a date, and produce a deterministic long date in the selected page language.
A QUICK WALKTHROUGH
How to use this tool
- Choose YYYY-MM-DD, MM/DD/YYYY, or DD/MM/YYYY.
- Enter the complete date and convert it.
- Review the locale-specific long date with the full month name.
Accepted short formats
The input must match the selected YYYY-MM-DD, MM/DD/YYYY, or DD/MM/YYYY pattern exactly.
Ambiguity policy
Numeric dates are never inferred. Selecting MM/DD/YYYY versus DD/MM/YYYY is required before conversion.
Bounded and local
The date field is limited to 10 characters, validates Gregorian calendar dates, and is processed in the browser with UTC calendar components.
GOOD TO KNOW
Common questions
What happens with 03/04/2026?
It means March 4 in MM/DD/YYYY and April 3 in DD/MM/YYYY. Choose the intended convention first.
Does the output include a time or timezone?
No. The output is a date-only long format.
Can I enter a two-digit year?
No. Use a four-digit year to avoid century guesses.