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Character Date

Posted on 2006-11-15
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Last Modified: 2013-12-03
What is the formula for converting a date format of 1/1/2007 to either a serial date for character data such as 20070101?

Thanks again...
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Question by:jfringer
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rockiroads earned 250 total points
ID: 17949077
format("mydate","YYYYMMDD")

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by:mbizup
ID: 17949079
Format(YourDate,"yyyymmdd")
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by:rockiroads
ID: 17949088
in fact u can use a variety of different masks within the format command

DD-MMM-YYYY   will produce 01-JAN-2006
MM/DD/YY will produce 01/01/06

all sorts of fun

hilite Format and hit F1 for more info
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by:mdegood
ID: 17949104
There is a builtin serial function:

DateSerial («year», «month», «day»)

This will return the serial value for that day...  Not sure if that's what you were looking for or not....
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by:rockiroads
ID: 17949184
DateSerial returns a date, not a serial value
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by:Rey Obrero (Capricorn1)
ID: 17949410
to convert a date to serial
place this functions in a module

Function Date2Serial(varDate As Date)
Dim yYear As Integer
yYear = Right(varDate, 4)

If IsLeapYear(yYear) = True Then
    Date2Serial = varDate - CDate("January 1,1900") + 2
    Else
    Date2Serial = varDate - CDate("January 1,1900") + 1
End If
End Function

Public Function IsLeapYear(varYear As Integer) As Boolean
    IsLeapYear = (Day(DateSerial(varYear, 3, 0)) = 29)
End Function


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Expert Comment

by:fanopoe
ID: 17949554
don't forget about:
year(mydate) & right("00" & month(mydate), 2) & right("00" & day(mydate), 2)

just for fun and an alternative way of breaking out the individual pieces

;)
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Expert Comment

by:dannywareham
ID: 17949576
(just for sh!ts and giggles)

You could use your date as a seed for a random number:

myNumber = yourdatefield *RND()

:-)

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by:harfang
ID: 17952726
rockiroads:
> DateSerial returns a date, not a serial value

There is no real difference. DateSerial() returns a serial value, with side instructions to display it using default date format. It's still what the name implies, a serial. cf:

    Format( Now(), "0.0")
    CDbl(Now())
    Int( Now() )
    Format( 2^16, "ddddd" )
    Format( #1:43 PM#, "percent" )

jfringer,

You have ample answers about "character dates". For "serial dates", as you see, there is no conversion needed as such, because all dates are serial dates. However, to remove the default date formatting, you can change the format of the date field to "0", use the dummy CDbl() conversion, or true conversions like Int(), CLng(), or -- again -- Format().

Reversly, you can create a Long Integer field and format it as date (I do that often).

(°v°)
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by:rockiroads
ID: 17956405
Harfang, for sure, ok, default format is date, so apologies mdegood
If u want the long value, u will have to specify the exact data type if u want to assign it to a variable
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