w()
Return weekday name in English.
The output format can be customized with set_weekday_format.
Result
text
Example
tell script "XDate"'s make_with("2018/1/1")
log w() -- "Monday"
set_weekday_format("short")
log w() -- "Mon"
set_weekday_format("number")
log w() -- "2"
end tell