Python has a DateTime module for working with dates and timings. DateTime is an intrinsic module in Python rather than a basic data type; we only need to import the module stated above to interact with dates as date objects.
Introduction to Python Datetime
Python Datetime could be a module that permits for the control of datetime objects. It contains capacities and classes for working with dates, times, and timezones. It can be utilized to change over strings to datetime objects, compare dates and times, and control the yield of dates and times in different groups. Python Datetime too gives tools for working with timezones, performing arithmetic operations with dates, and making calendars.
How to Use Date and Datetime Class?
The datetime module of Python offers various useful classes for effortlessly manipulating and processing dates and times. This module contains classes that can represent dates and times in a datetime object, allowing Python programmers to easily extract components of dates such as years, months, days, hours, minutes, and seconds. The datetime module additionally allows for simple date arithmetic and formatting date strings into standard formats. By utilizing the datetime module, Python developers can efficiently handle date and time information in their programs without having to manually parse and calculate dates and times. The datetime module greatly simplifies the process of working with dates and times in Python applications.
Date: The date class of the datetime module is used to store and manipulate dates.
import datetime # Create a date object d = datetime.date(2020, 7, 15) # Get the year, month, and day of the date year = d.year month = d.month day = d.day # Get the weekday number for the date weekday = d.weekday() # Get today's date today = datetime.date.today()
This code imports the datetime module and creates a date object. It then retrieves the year, month, and day of the date, as well as the weekday number for the date. Finally, it retrieves today's date.
Datetime: The datetime class of the datetime module is used to store and manipulate date and time.
import datetime # Create a datetime object dt = datetime.datetime(2020, 7, 15, 12, 30, 45) # Get the year, month, day, hour, minute, and second of the datetime year = dt.year month = dt.month day = dt.day hour = dt.hour minute = dt.minute second = dt.second # Get today's datetime today = datetime.datetime.today()
This code imports the datetime module and creates a datetime object. It then retrieves the year, month, day, hour, minute, and second of the datetime. Finally, it retrieves today's datetime.
Classes of DateTime Python Module
import datetime # Get current date and time now = datetime.datetime.now() # Get date from now date = now.date() # Get time from now time = now.time() # Get datetime from now datetime_now = now.datetime() # Find difference between two datetimes difference = datetime.datetime.now() - datetime.datetime(2017, 7, 1) # Create a timezone aware datetime tz_aware_datetime = datetime.datetime(2017, 7, 1, tzinfo=datetime.timezone.utc)
This code imports the datetime module, which allows us to access various types of date and time objects. The code then gets the current date and time and assigns it to the now variable. It then uses the now variable to get the date, time, and datetime, which are all stored in separate variables. It also calculates the difference between two datetimes using the subtraction operator. Finally, it creates a timezone aware datetime, which is assigned to the tz_aware_datetime variable.
Basics of pytz Library
The pytz library may be a library for Python that gives access to the Olson timezone database. It permits clients to get to and utilize time zone data from Python. It gives a way to change over neighborhood times to other time zones and work with timezone-aware datetime objects. It too gives a list of timezone names and their comparing UTC offsets. The pytz library is valuable for applications that got to be mindful of diverse timezones, such as for planning occasions or for internationalization.
The syntax for creating a timezone in Python with the pytz library is as follows:
import pytz timezone = pytz.timezone('<timezone name>')
The ‘timezone name’ should be replaced with a valid Olson tz database name, such as 'America/New_York' or 'Europe/London'.
These are the ways to find the current date
The .today() method from the datetime module returns the current local date. It returns a datetime object without time information.
The .now() method from the datetime module returns the current local date and time. It returns a datetime object with time information.
Use of datetime.strptime()
The datetime.strptime() strategy is utilized in Python to change over a string to a datetime object. This strategy takes in two arguments, the string to be changed over and the format of the string. It parses the string to create a datetime object which can at that point be utilized for different operations. This method is particularly valuable when managing with a huge number of date designs from different sources.
import datetime dt_str = '2021-02-03 10:45:30' dt_obj = datetime.strptime(dt_str, '%Y-%m-%d %H:%M:%S') print(dt_obj) # Output: 2021-02-03 10:45:30
In the above illustration, we have imported the datetime module and made a string variable dt_str that contains a date-time string. We at that point utilized the datetime.strptime() method to change over the string to a datetime object. The first argument of the method is the string to be changed over and the second argument is the format of the string. In this case, the arrange is '%Y-%m-%d %H:%M:%S' which matches the format of the string. The resulting datetime object is at that point printed to the console.
How to Get Current timeStamp?
import datetime current_timestamp = datetime.datetime.now().timestamp() print(current_timestamp)
This code imports the datetime module and uses it to get the current timestamp (in seconds since the epoch). It then prints out the timestamp.
How to Know the Day of the Given Date?
To know the day of the given date in Python, you can use the datetime library.
For example, if you have a date in the format of YYYY-MM-DD, you can use the following code to find the day:
import datetime date = '2020-08-22' date_object = datetime.datetime.strptime(date, '%Y-%m-%d') day = date_object.strftime('%A') print(day)
Generate a List of Dates from a Given Date
import datetime # Generate a list of dates from today + 5 days start_date = datetime.date.today() end_date = start_date + datetime.timedelta(days=5) date_range = [start_date + datetime.timedelta(days=x) for x in range(0, (end_date-start_date).days)] print(date_range)
This code creates a list of dates between a start date (in this case, the current date) and an end date (in this case, 5 days from the start date). It does this by creating a date range starting at 0 days from the start date and ending at the number of days between the start date and the end date. Each day is then added to the date range as a datetime object. The result is a list of dates in the range.
Applications Of Python DateTime Module
Python's DateTime module offers different classes for effectively taking care of and controlling dates and times. The module contains classes for dates, times, date-times, timedeltas, and timezones. The date course is utilized to store and control dates, whereas the datetime course is utilized for putting away date and time data. With these instruments, Python designers can effectively handle and control date and time data in their programs.
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