#Function
In PySpark, the date_format() function is used to format a DateType or TimestampType column into a string in a specified format. This function is part of the pyspark.sql.functions module and can be useful when you need to display or work with date and time data in a more readable or custom format.

Syntax: -

from pyspark.sql.functions import date_format

date_format(column, format)

column: The name of the column containing the date or timestamp.
format: A string representing the desired date/time format.

Common Date/Time Format Patterns:

• yyyy: 4-digit year (e.g., 2024)
• MM: 2-digit month (01-12)
• MMM: 3 letter month (Jan,Feb)
• dd: 2-digit day of the month (01-31)
• HH: 2-digit hour (00-23)
• mm: 2-digit minute (00-59)
• ss: 2-digit second (00-59)

Important Notes:

• The date_format() function returns the result as a string.
• It is often used in combination with other functions like to_date() or to_timestamp() to -convert string columns into date or timestamp types before formatting.