Python date module

What is python date module?

We can generate or create dates and times in python using the date module. The date is a module by which we can work with date and time in python.

Because it is a module, so we have to import it into the python file if we want to work with it.
To import write:
import datetime

date() function

Let's see an example: In this example, we will create a date using the date function.
Function parameters:
date(year, month, data)

Be careful about one thing:
If the digit is single then don't use 0 before the digit. If we use zero then it will give an error.

We can also extract particular information from here like, only day, month, year, weekday.

To get weekday we use the weekday() function. In this function index number starts from Monday end to Sunday. Monday index number is 0 and Sunday index number is 6.

Date class methods

time() function

time() function is used to create time.
parameters:
time(hour, minute, second, microsecond)

Be careful about one thing:
If the digit is single then don't use 0 before the digit. If we use zero then it will give an error.

We can also extract a particular information from here like, only hour, second , microsecond, minute. It means if we don't pass values for time then we will see 00:00:00 in the output.

Time class methods

datetime() function

By using the date function we can only create a date and using the time function we can only create time. But in datetime function we can create both date and time.
Parameters:
datetime(year, month, day, hour, hour, minute, second, microsecond )

Be careful about one thing:
If the digit is single then don't use 0 before the digit. If you use zero then it will give an error.

We can also extract particular information from here like, only day, month, year, weekday, hour, second, microsecond, minute and if we don't pass values for time then you will see 00:00:00 in the output.

Date Time class methods

today() function

To see current date we will use today() function.

Here today function will display the today's date.

We can also extract a particular information from here like, only day, month, year, weekday.

To get weekday we use the weekday() function. In this function index number starts from Monday end to Sunday. Monday index number is 0 and Sunday index number is 6.

now() function

To see the current date and time we will use the now() function.

Date formatting

In the datetime of today function, we got a date and the date format is year-month-day. If we want to change the format then we can do that.
To do this we use the strftime() function. In this function, we will pass the format code and according to the given format, the date will be formatted.

Let's see the date format codes :

Convert date into string

To convert date into string isoformat() function is used.

Timedelta class

This timedelta class is used for calculating differences between dates. We can also use it for date manipulations.

Parameter:
class datetime.timedelta(days=int_val, seconds=int_val, microseconds=int_val, milliseconds=int_val, minutes=int_val, hours=int_val, weeks=int_val)

Let's find difference between date and time

Example:
Input
import datetime

currTime = datetime.datetime.now()

print("currTime", str(currTime))

new_time = currTime + \ datetime.timedelta(days=3)

print("new_time", str(new_time))

print('Time difference:', str(new_time - currTime))
Output
currTime 2022-04-02 09:36:55.217511
new_time 2022-04-05 09:36:55.217511
Time difference: 3 days, 0:00:00

Operators for Timedelta