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This function is for BASIC compatibility. It is not available in pure JavaScript projects.

WeekDay(date[, firstdayofweek])


WeekDay returns an integer representing the day of week from a given date. The required parameter, date, is a numeric expression, a string expression, or any valid expression that can represent a date. The optional parameter, firstdayofweek, is Sunday, if not specified. The return value is an integer from the table below.

For more information about firstdayofweek constants, see DateDiff.

Table 26: WEEKDAY return values

Constant Value Description
vbSunday 1 Sunday
vbMonday 2 Monday
vbTuesday 3 Tuesday
vbWednesday 4 Wednesday
vbThursday 5 Thursday
vbFriday 6 Friday
vbSaturday 7 Saturday

Example (Basic)

Rem WeekDay Example
'WeekDay returns day of week as an integer

Dim IndepDay, Birthday
IndepDay = WeekDay("July 4, 1776")
PRINT "Weekday of July 4, 1776:", IndepDay
Birthday = WeekDay("12/27/70")
PRINT "Weekday of 12/27/70:", Birthday


Weekday of July 4, 1776: 5
Weekday of 12/27/70: 1

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