How to add timestamp to excel file in Python
Last Updated :
22 Nov, 2021
In this article, we will discuss how to add a timestamp to an excel file using Python.
Modules required
- datetime: This module helps us to work with dates and times in Python.
pip install datetime
- openpyxl: It is a Python library used for reading and writing Excel files.
pip install openpyxl
- time: This module provides various time-related functions.
Stepwise Implementation
Step 1: Create the workbook object and select the active sheet:
wb = Workbook()
ws = wb.active
Step 2 (Optional): Write the heading in cell A1.
# Here column=1 represents column A and row=1 represents first row.
ws.cell(row=1, column=1).value = "Current Date and Time"
Step 3: Use the following command to get the current DateTime from the system.
time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
The strftime() function is used to convert date and time objects to their string representation. It takes one or more inputs of formatted code and returns the string representation.
Step 4: Write the DateTime in cell A2.
ws.cell(row=2, column=1).value = time
Step 5: Initiate a sleep of 2 seconds using time.sleep(2)
Step 6: Similarly, get the current datetime again and write it in cell A3. Here you will notice a difference of 2 seconds from the previous DateTime since there was a sleep of 2 seconds in between.
Step 7: Finally, Save the excel workbook with a file name and close the workbook
wb.save('gfg.xlsx')
wb.close()
Below is the full implementation:
Python3
import datetime
from openpyxl import Workbook
import time
if __name__ = = '__main__' :
wb = Workbook()
ws = wb.active
ws.cell(row = 1 , column = 1 ).value = "Current Date and Time"
ws.cell(row = 2 , column = 1 ).value = datetime.datetime.now().strftime( '%Y-%m-%d %H:%M:%S' )
time.sleep( 2 )
ws.cell(row = 3 , column = 1 ).value = datetime.datetime.now().strftime( '%Y-%m-%d %H:%M:%S' )
time.sleep( 2 )
ws.cell(row = 4 , column = 1 ).value = datetime.datetime.now().strftime( '%Y-%m-%d %H:%M:%S' )
wb.save( 'gfg.xlsx' )
wb.close()
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Output:
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