Hello,
I have a script which allows me to display the remaining printing time on my ender 3 pro.
Is it possible to recover this time on octoprint?
I do not launch prints via octoprint because my wife tends to blow the current.
Sorry for my english i am not good at it.
Thank you
No worries 
Did you start the sd print via octoprint or via display?
I little UPS could be the right thing for that case
I start printing from the SD card.
I planned the purchase of an inverter but for that you have to put a bit of money aside.
But where did you start the print
In your webbrowser or on the display of your printer?
On my printer