What are the commonly used methods in the datetime module in Python?

Commonly used methods in the datetime module in Python include:

1. Returns the current date and time.
2. Create a datetime object with the specified date and time using datetime.datetime(year, month, day, hour, minute, second).
3. Convert a string to a datetime object by specifying the format of the string, using datetime.datetime.strptime(date_string, format).
4. The datetime object is converted to a string in the specified format using the datetime.datetime.strftime(format) method.
5. datetime.datetime.date(): returns the date part of the datetime object.
6. time() returns the time part of a datetime object.
7. datetime.datetime.timestamp(): Returns the timestamp of a datetime object.
8. Replace specific parts of a datetime object with the given year, month, day, hour, minute, and second.
9. The datetime.timedelta(days, seconds, microseconds) represents a duration of time that can be used for adding or subtracting dates and times.
10. datetime.timedelta.total_seconds(): Returns the total number of seconds in the time interval.