A YouTube video clip can add a powerful message to your Tumblr blog when you show the right content in a specific time range. Work with the start and end times of the clip to insert what you need. Each video comes with a unique identifier that is included in the HTML code. Copying this embed code from YouTube and pasting to your Tumblr blog will insert this video. To show only a clip, you update this code with the start parameter and end parameter to show only the content for this time range.

Step 1

Start the YouTube video and write down the start and end times for this clip based on the number of seconds from the video’s beginning. For example, a start time of 1:30 is 90 seconds.

Step 2

Click the "Share" link and then select "Embed" to display the embed code. Press "Ctrl-C" to copy this embed code. The check box for "Use old embed code” must remain deselected or blank.

Step 3

Open your Tumblr Dashboard, select the blog and click the "Text" link to open the text box.

Step 4

Click "<html>" on the toolbar to open the window in HTML mode. Press "Ctrl-V" to paste the embed code from YouTube to your Tumblr post. This embed code includes the video’s unique identifier code located to the right of “embed/”. For example, <iframe width="560" height="315" src="//www.youtube.com/embed/XXXXXXXXXXX" frameborder="0" allowfullscreen></iframe>

Step 5

Insert this code after the video’s unique identifier and before the double quotation marks:

?start=AA&end=BB

Step 6

Substitute "AA" with the start time in seconds. Substitute "BB" with the end time in seconds.

Step 7

Click "Post." A rectangle icon displays on your blog post; click it to open your blog post with the video clip.