As per the below screenshot I have marked by Green color Describe the “How long Server is rebooted?” or How much time taken for Server Reboot?.
Totally 3 times server rebooted.
Amount of time taken for Server Reboot (MIN) =Server Rebooted time – Server boot time After Server rebooted
11 Min = 12:20 – 12:31
5 Min = 17:47 – 17:52
6 Min = 11:17– 11:23
Below screenshot describes the total uptime of the server for one reboot in marked as red color .
total uptime of the server for one reboot = Server Boot time – Server Rebooted Time
5:16 (HH:MM) = 12:31 – 17:47