Python: Convert a date of yyyy-mm-dd format to dd-mm-yyyy

Last update on April 23 2025 12:59:44 (UTC/GMT +8 hours)

25. Convert Date Format

Write a Python program to convert a date of yyyy-mm-dd format to dd-mm-yyyy format.

Sample Solution:

Python Code:

import re
def change_date_format(dt):
        return re.sub(r'(\d{4})-(\d{1,2})-(\d{1,2})', '\\3-\\2-\\1', dt)
dt1 = "2026-01-02"
print("Original date in YYY-MM-DD Format: ",dt1)
print("New date in DD-MM-YYYY Format: ",change_date_format(dt1))

Sample Output:

Original date in YYY-MM-DD Format:  2026-01-02                                                                
New date in DD-MM-YYYY Format:  02-01-2026 

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to convert a date from "YYYY-MM-DD" format to "DD-MM-YYYY" format using string manipulation.
• Write a Python script to reformat a date string from one format to another and then verify the conversion using datetime.
• Write a Python program to read a date in "YYYY-MM-DD" format, convert it to "DD-MM-YYYY", and then output the result.
• Write a Python function that takes a date string in one format and returns it in an alternative format after validating it.

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