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Posted 27 Nov 2008


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Change File Date Attributes

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4.47/5 (22 votes)
27 Nov 2008CPOL1 min read
Change created, modified and accessed time


Have you ever found yourself in a situation where you wanted to change the attributes of a file such as the creation date, modified date or last accessed date.

For one reason or another, sometimes you might just want to change the attributes, and since Windows does not offer an easy way to do so, I wrote a small easy-to-use program to change the date of a file.

Using the Program

After extracting and executing the program, click open and load the file for which you want to change the attributes.


After you open the file, you will see its path in the textbox in the bottom of the program.
Now all you have to do is just click on the checkbox that you wish to edit, and select a new time and date.


Click Save and the new attributes will be saved into the file.


The file attributes will look like the following:


Using the Code

I will explain just the functions required to change the date attributes.

First we add the IO library:

using System.IO;

Then we get the path of the file:

string path="";

OpenFileDialog dialog = new OpenFileDialog();

if (dialog.ShowDialog() == DialogResult.OK)
	path = dialog.FileName;

Then we create the DateTime object:

DateTime dtCreation = new DateTime(2007, 10, 2, 2, 19, 33);
DateTime dtModified = new DateTime(2008, 11, 4, 2, 23, 4);

And we assign it to the file:

//Change the file created time.
File.SetCreationTime(path, dtCreation);
//Change the file modified time.
File.SetLastWriteTime(path, dtModified);


I wrote this small program for a friend of mine who wanted to change the date of a file and didn't know any easy way to do it. Please feel free to reply or ask any question(s).


  • 27th November, 2008: Initial post


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Etienne Rached
Software Developer
Canada Canada
No Biography provided

Comments and Discussions

QuestionAdding AM/PM Pin
stinking_shoe7-Jul-22 8:55
Memberstinking_shoe7-Jul-22 8:55 
QuestionDoes file.copy function change modified date? Pin
Member 1079034826-Jun-19 3:50
MemberMember 1079034826-Jun-19 3:50 
GeneralComment Pin
Member 1275503516-Mar-17 19:12
MemberMember 1275503516-Mar-17 19:12 
GeneralGreat................ Pin
Ganesh Madane28-Aug-16 19:46
MemberGanesh Madane28-Aug-16 19:46 
QuestionEnhencments Pin
Khursheed Fateh17-Aug-16 18:41
MemberKhursheed Fateh17-Aug-16 18:41 
Questionautomatically changing a filename each time I save a file in visual studio. Pin
Member 1194056227-Aug-15 5:07
MemberMember 1194056227-Aug-15 5:07 
GeneralMy vote of 5 Pin
Member 1111263626-Sep-14 7:54
MemberMember 1111263626-Sep-14 7:54 
SuggestionThank you (extra code to enumerate a folder) Pin
zhivot3-Sep-14 15:18
Memberzhivot3-Sep-14 15:18 
GeneralMuchas gracias! Pin
Member 1000395021-Apr-13 22:34
MemberMember 1000395021-Apr-13 22:34 
GeneralThanks.. works great Pin
saumen_halder3-Apr-13 0:58
Membersaumen_halder3-Apr-13 0:58 
QuestionPowershell Option Pin
oolie30-Mar-13 19:54
Memberoolie30-Mar-13 19:54 
GeneralAdding AM or PM to CustomFormat Pin
John Jasper13-Aug-09 11:38
MemberJohn Jasper13-Aug-09 11:38 
QuestionHow to change last saved date? Pin
Member 46863649-Jul-09 0:14
MemberMember 46863649-Jul-09 0:14 
AnswerRe: How to change last saved date? Pin
oolie30-Mar-13 19:48
Memberoolie30-Mar-13 19:48 
GeneralChanging more than one file's date. Pin
dbett8-Feb-09 16:35
Memberdbett8-Feb-09 16:35 
GeneralRe: Changing more than one file's date. Pin
Etienne Rached17-Feb-09 13:55
MemberEtienne Rached17-Feb-09 13:55 
Generalexecuting the program Pin
jim sladge6-Jan-09 5:12
Memberjim sladge6-Jan-09 5:12 
GeneralRe: executing the program [modified] Pin
Etienne Rached10-Jan-09 15:54
MemberEtienne Rached10-Jan-09 15:54 
QuestionConsistency of dates ? Pin
rob tillaart2-Dec-08 22:14
Memberrob tillaart2-Dec-08 22:14 
AnswerRe: Consistency of dates ? Pin
Dennis Dykstra5-Dec-08 4:19
MemberDennis Dykstra5-Dec-08 4:19 
AnswerRe: Consistency of dates ? Pin
Etienne Rached16-Dec-08 17:52
MemberEtienne Rached16-Dec-08 17:52 
GeneralRe: Consistency of dates ? Pin
rob tillaart16-Dec-08 19:44
Memberrob tillaart16-Dec-08 19:44 

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