Please note, this is a STATIC archive of website www.w3resource.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.
w3resource

Pandas: Subtraction of two timestamps of same time zone or different time zone

Pandas Time Series: Exercise-20 with Solution

Write a Pandas program to subtract two timestamps of same time zone or different time zone.

Sample Solution:

Python Code :

import pandas as pd
print("Subtract two timestamps of same time zone:")
date1 = pd.Timestamp('2019-03-01 12:00', tz='US/Eastern')
date2 = pd.Timestamp('2019-04-01 07:00', tz='US/Eastern')
print("Difference: ", (date2-date1))
print("\nSubtract two timestamps of different time zone:")
date1 = pd.Timestamp('2019-03-01 12:00', tz='US/Eastern')
date2 = pd.Timestamp('2019-03-01 07:00', tz='US/Pacific')
# Remove the time zone and do the subtraction
print("Difference: ", (date1.tz_localize(None) - date2.tz_localize(None)))

Sample Output:

Subtract two timestamps of same time zone:
Difference:  30 days 18:00:00

Subtract two timestamps of different time zone:
Difference:  0 days 05:00:00

Python Code Editor:


Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Pandas program to remove the time zone information from a Time series data.
Next: Write a Pandas program to calculate all Thursdays between two given days.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m