Is it possible to install the Debian updates outside of the automatic schedule?

[Alphabetic]

Hello

I have a phone system that runs a crisis line so maintenance has to be planned.

is it possible to run the updates to get the Debian updates too?

the automatic scheduling only allows for 1 hour windows and I cant have unpredictability on when the system will go down.

thanks.

 

[KyriacosS_3CX]

Why with auto-update off, you choose when and which updates to install, including Debian OS updates.

 

[Alphabetic]

Why with auto-update off, you choose when and which updates to install, including Debian OS updates.

I thought it only installs debian updates if its on?

do debian updates get installed if im pressing to manually install too?