Using the WIL language it is possible to grab the day of the week. The following example from TimeJulianDay grabs the current time and day of the week.
;This example grabs the Time/Day of the Week. a=TimeYmdHms( ) b=TimeJulianDay(a) c=(b+5) mod 7 day=ItemExtract(c+1, "Sun Mon Tue Wed Thu Fri Sat", " ") line=StrCat("Julian Date-> ", b,@crlf,"Day of week-> ",day) Message(TimeDate( ), line)