What time units are used?
 

I'm setting up spawns but don't know what time units are used. If I put 640 with a variance of 320, are those seconds, milliseconds, hours?

I was checking the Wiki but didn't see any description.

Milliseconds are used

..and when setting up grids the delay is seconds

[Add Waypoints to New Grid]
[45 = 45 second pause w/ random timer of how long npc will wait there]
#wp add 1001 45 0
#wp add 1001 45 1
#wp add 1001 45 2
#wp add 1001 45 3
#wp add 1001 45 4
#wp add 1001 45 5
GeorgeS