Calculation Uptime when router was rebooted !!!

Hi All,
How do I Calculation time for each user when a power outage for server
there are often power outages have in the city.
i’m use Mikrotik RouterOS v2.9.27 and Hotspot server for users

May Some one help me please by Some Rule Or Script Or Any Idea,
So that the server calculates the time spent by each user
Hotspot.Users.Uptime.png

v2.9.27

That version is mostly used by people who downloaded a cracked version illegally. If that’s the case with you, don’t expect support here.

If you do have a legal version first upgrade your router. The current versions are 5.x.

This is my ScreenShots For Interface Address list & Route list
Route.List.png
Address.List.png
interface.png

As Fewi says, upgrade to newer version then you can use some Accounting methods like radius client or MT User manager