In QuickBooks Self-Employed (QBSE), we're unable to undo the deleted beta time transaction. Though, you'll have to recreate it again.
Here's how:
Go to the Time menu.
Create a new time entry.
Fill out the necessary information.
Click Start.
Once the time ends, click Stop and save.
Also, I encourage checking our Help articles page to learn some tips and tricks in managing your QBSE account. From there, you can read great articles that can guide you through the steps by steps process.
You can leave a comment below if you have other questions. I'm always here to help. Take care!