Find Yesterday's, Today's and Tomorrow's Date - Python

Last Updated : 18 Nov, 2025

Given a current date, the task is to print yesterday’s, today’s, and tomorrow’s date. For example:

If today = 14-11-2025
Yesterday = 13-11-2025
Tomorrow = 15-11-2025

Let’s explore different methods to compute and print these dates in Python.

Using datetime + timedelta

This method uses datetime.now() to get today’s date, then adds or subtracts a timedelta of 1 day to derive yesterday and tomorrow. It automatically handles edge cases like month-end and leap years.

Python 
from datetime import datetime, timedelta

presentday = datetime.now()
yesterday = presentday - timedelta(days=1)
tomorrow  = presentday + timedelta(days=1)

print("Yesterday:", yesterday.strftime('%d-%m-%Y'))
print("Today:", presentday.strftime('%d-%m-%Y'))
print("Tomorrow:", tomorrow.strftime('%d-%m-%Y'))

Output
Yesterday: 13-11-2025
Today: 14-11-2025
Tomorrow: 15-11-2025

Explanation:

  • presentday = datetime.now() retrieves the current local date and time.
  • timedelta(days=1) creates a time difference of one day.
  • presentday - timedelta(1) gives yesterday and presentday + timedelta(1) gives tomorrow.
  • strftime('%d-%m-%Y') formats the date into a readable string.

Using date.today() + timedelta

This version uses the date class instead of datetime. It works directly with only the date part, making it simpler when time is not needed.

Python 
from datetime import date, timedelta

today = date.today()
yesterday = today - timedelta(days=1)
tomorrow  = today + timedelta(days=1)

print("Yesterday:", yesterday.strftime('%d-%m-%Y'))
print("Today:", today.strftime('%d-%m-%Y'))
print("Tomorrow:", tomorrow.strftime('%d-%m-%Y'))

Output
Yesterday: 13-11-2025
Today: 14-11-2025
Tomorrow: 15-11-2025

Explanation:

  • date.today() gives only the current date (no time).
  • timedelta(days=1) adds/subtracts a day cleanly.
  • .strftime() converts the date into dd-mm-yyyy format.

Using calendar Module

This method calculates yesterday/tomorrow using timedelta but uses calendar.day_name to display the day of the week like Monday, Tuesday, etc.

Python 
import calendar
from datetime import date, timedelta

today = date.today()
yesterday = today - timedelta(days=1)
tomorrow  = today + timedelta(days=1)

print("Yesterday:", calendar.day_name[yesterday.weekday()], yesterday.strftime('%d-%m-%Y'))
print("Today:", calendar.day_name[today.weekday()], today.strftime('%d-%m-%Y'))
print("Tomorrow:", calendar.day_name[tomorrow.weekday()], tomorrow.strftime('%d-%m-%Y'))

Output
Yesterday: Thursday 13-11-2025
Today: Friday 14-11-2025
Tomorrow: Saturday 15-11-2025

Explanation:

  • calendar.day_name[...] returns day name like "Thursday".
  • .weekday() returns day index (0=Monday, 6=Sunday).

Using Timestamp Replacement

This method converts today into a timestamp, manually adjusts the timestamp by adding or subtracting 86400 seconds, then converts it back into a date. It works but is less intuitive. (86400 seconds = 24 hours)

Python 
from datetime import datetime, timedelta

today = datetime.now()
yesterday = datetime.fromtimestamp(today.timestamp() - 86400)
tomorrow  = datetime.fromtimestamp(today.timestamp() + 86400)

print("Yesterday:", yesterday.strftime('%d-%m-%Y'))
print("Today:", today.strftime('%d-%m-%Y'))
print("Tomorrow:", tomorrow.strftime('%d-%m-%Y'))

Output
Yesterday: 13-11-2025
Today: 14-11-2025
Tomorrow: 15-11-2025

Explanation:

  • today.timestamp() converts today's date to seconds.
  • - 86400 subtracts 24 hours to get yesterday.
  • + 86400 adds 24 hours to get tomorrow.
  • datetime.fromtimestamp() converts the timestamp back to a date.
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