For your specific request, assuming your date string is formatted as your regional setings:
sDayName = Format("11/01/2016", "dddd")
If you want the weekday for today:
sDayName = Format(Date, "dddd")
If you want the weekday for any date in any regional settings
sDayName = Format(DateSerial(2016, 11, 4), "dddd")
'change 2016, 11, 4 for your year, month, day values
:)
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