Redux — the default Tumblr blog theme — shows a timestamp at the bottom of each post. However, a custom theme that omits this feature may have been installed. A Tumblr time-stamp has two aims. It enables readers to know when a post is published and is a permanent link that someone can use for bookmarking and content sharing. To insert timestamps under your post, edit the source code of your Tumblr blog.

  • At the top of the Dashboard, click on the title of your blog, then click on "Appearance Customization" on the right side of the menu bar.
  • On the "Customize appearance" screen, click the "HTML edit" button on the top of the left menu bar. A new panel opens and shows your blog's theme source code.
  • To open the "Find" dialog, click "Ctrl+F." Enter the following section of code by type "{block:Text}" in a dialog and clicking "Enter":

{block:Text} {block:Title}


{Title}

{/block:Title}

{Body}

{/block:Text}


  • Clicking "{block:Text}" to place a cursor in space and clicking the "Enter" button on a new line. Insert the code below:

{block:Date} {block:NewDayDate} {DayOfWeek}, {Month} {DayOfMonth}, {Year} {/block:NewDayDate} {/block:Date}


  • This adds a time stamp to your Tumblr blog text posts. Continue to add timestamps to other posts.

  • To search for the "{block:Photo}" tag, press "Ctrl + F" another time. Insert the code in step 5 immediately below "{block:Photo}" on a new line. 
  • To search for the "{block:Photo}" tag, press "Ctrl + F" another time. Insert the code in step 5 immediately below "{block:Photo}" on a new line.
  • Repeat step 5 of "{block:Photoset}," "{block:Quote}," "{block:Link}" and "{block:Chat}" to the following tags.
  • To see what your blog will look like after the changes, click on "Update Preview" at the top of the left menu bar.
  • To return to the Tumblr.com Dashboard, click "Appearance," "Save" and "Close."