Uptimed

is a daemon that keeps track of system's 'uptime' (how long a system has running between a reboot). It can be used to provide the statistical information necessary to boast about how long a system as gone between reboots. Huge nerds love this.

Files

 * - The global configuration file for.

OpenRC
With OpenRC the uptimed daemon can be added to the default system runlevel with the following command:

This will add the daemon to start as a service whenever the system performs a full boot.

Systemd
When using systemd, issue the following command to start uptimed on the next boot:

Invocation
The command will print a table with system uptime information:

External resources
https://archives.gentoo.org/gentoo-user/message/b6e85a7d66178464ec2188592bb3b2fe - A Gentoo mailing list thread where was handy.