Updated: 04/02/2019 by Computer Hope

A timestamp or time stamp is a time registered to a file, log, or notification that records when data is added, removed, modified, or transmitted. Below are some examples of how a timestamp may be used, and where.


A date stamp is similar to the timestamp but only shows the date instead of only the time or time and date. For example, Computer Hope uses a date stamp on its updated notice shown below the page title to indicate when a page was last updated.

Network attack aimed at banking data

In the example below, the timestamp shows a time and date when a news article was submitted. Many web pages that have several updates a day will post a date and time to let users know when something was posted or last updated.

Network attack aimed at banking data
Submitted Friday, July 02, 2004 @ 08:11 A.M.

Command line timestamp

In the example below, you can see that the MS-DOS command line, like every operating system, shows a time and date stamp of when a file was last modified.

06/21/1998 09:35p 6,815 ch.gif

Business terms, Date, Epoch, Time, Y2k