[jwond]

There is a restart action. You need to first add the Shut Down action, then you can change it to Restart.

[designed]

Just tried it. Unfortunately, even when you choose "Run Immediately", it still asks for user input when the time comes ("Are you sure you want to restart this iPhone?")

[mike_d]

I have had my phone set to reboot every day at sunrise and have had no issues with it prompting for input in weeks.

[RulerOf]

Thank you very much. I've wanted to have a weekly reboot of my phone for years now, and it drove me nuts that I couldn't create a shortcuts automation for it.

[buzzerbetrayed]

Nice! Just created an automation to restart daily at 4:00am. Hopefully it works without user input.

[astrea]

I'm so dumb. I didn't even click into the "Blank Actions" tile.