Increase your video length limit
By default, you can upload videos that are up to 15 minutes long. Verified accounts can upload videos longer than 15 minutes.
To verify your Google Account:
On a computer, go to https://www.youtube.com/verify.
Follow the steps to verify your Google Account. You can choose to get a verification code through a text message on a mobile device or an automated voice call.
Make sure you're using an up-to-date version of your browser to upload files greater than 20 GB.
Maximum upload size
The maximum file size you can upload is 128 GB or 12 hours, whichever is less. We've changed the limits on uploads in the past, so you may see older videos that are longer than 12 hours.
More information on YouTube uploads can be found at: https://support.google.com/youtube/