Uptime Syntax

uptime [server] [/s] [/a] [{ /d:mm/dd/yyyy | /p:n }] [/heartbeat] [{ /? | /help }]

Where:

uptime: run with no options, returns the uptime (length of time since the last restart) of the local computer.
Example
server: specifies the name or IP address of a remote server to process.
/s: displays key system events and statistics.
Example
/a: displays application failure events along with all of the system information displayed by /s.
/d:mm/dd/yyyy: calculates only for events after mm/dd/yyyy.
/p:n: calculates only for events in the previous n days.
Example
/heartbeat: toggles on or off the system's heartbeat.
Example
/?: displays basic usage.
/help: displays additional usage information.