...
GN_Gmt, fetch machine time
GN_Gtm, convert an ASCII string to a time in internal format
GN_Msc, miscellaneous time operations
GN_Pmt, put (set) machine time
GN_Ptm, write internal time as ASCII string
GN_Sdo, send date and time to standard output
OS_Dly, delay a given period
Tokens
OS_Wrt, write token
OS_Wtb, write token base
OS_Wts, write tokenized string (OZ 5.0 and newer)
Wildcards
GN_Opw, open wildcard handler
GN_Wcl, close wildcard handle
GN_Wfn, fetch next match for wildcard string (handle)
GN_Wsm, match filename segment to wildcard string
...