Returns the uptime of the game/server in seconds (to at least 4 decimal places). This value updates itself once every time the realm thinks. For servers, this is the server tickrate. For clients, its their current FPS.
Changing the map will not fix it like it does with CurTime. A server restart is necessary.
You should use this function (or SysTime) for timing real-world events such as user interaction, but not for timing game events such as animations.