about the BTCL

Hi, all
In a discover .inp file, the following statement is always present, when molecular dynamics is going to run, e.g.:
"...
dynamics \
time = 2000.00 \
timestep = 1.00 \
..."

How can I cite the vaule of vaiable "time", 2000. in this case? I have tried "\$time" and "time" and failed. Is there another intrisic variable for "time"? if there is, what is it?
Thank you