Convert Time in Timescale to Simulation Time
converts a time specified in a defined timescale (say weeks) to the timescale of the simulation (say hours if the rates are in 1/hr units)
system_ts_to_simtime(cfg, tstime, ts)
cfg
: ubiquity system objecttstime
: numeric time of the timescalets
: string containing the timescaletstime
in the system timescale units