Job duration elaboration

hello everyone,

i want to ask about cicd log-duration-badge, the grey rounded number 30:01 on the right side (image attached)
is there any documentation about this ? and how to configure this ?
i’m using self-hosted gitlab server on remote country. and just keep getting 30:xx number everytime activity/command inside jobs running
does this related to something like timezone setting ?

a simple explanation and documentation would be very helpful
thank you