VBScript Reference Manual for InduSoft Web Studio

VBScript Reference Manual InduSoft Web Studio
Date (and Time) Variables
Date is another of VBScript’s data subtypes. The Date data subtype actually contains both date and
time information that can be stored in variables and constants. The Date format is Gregorian and the
Time is local, with Day Lights Savings changes ignored unless specified in the system settings. The
date subtype is a number that represents a date in the range of January 1, 100 to December 31, 9999.
The following are valid ranges for the date and time fields:
Second 0 to 59
Minute 0 to 59
Hour 0 to 23
Day 0 to 31
Month 1 to 12
Year 100 to 9999
With the date subtype, there are predefined VBScript constants that refer to the day of the week and
New Year’s week. There are also Date and Time formatting constants that are used with the
FormatDateTime function. In addition, there are several Date and Time functions available in VBScript.
A literal date can be defined by surrounding a date/time value with the # symbol on each end.
Some examples using Date and Time include:
Dim CurDay, OldDay, DayDiff, HourDiff
Dim MyDay, MyMonth, MyYear, RecentDay, OtherDay, MyDate
OldDay = #3/27/2006 08:20:59# ‘ Set an old date
CurDay = Now() ‘ reads current System time and date
DayDiff = DateDiff(“d”. OldDay. CurDay) ‘ returns # days between OldDay and CurDay
HourDiff = DateDiff(“h”, OldDay, CurDay) ‘ returns # hours between OldDay and CurDay
MyDay = 27 ‘ specify day, month, year
MyMonth = 3
MyYear = 2006
RecentDay = DateSerial(MyYear, MyMonth, MyDay) ‘ converts into a Date subtype variable
OtherDay = DateSerial(MyYear, MyMonth-2, MyDay) ‘ you can use expressions in this
function
MyDate = FormatDateTime(CurDay, vbLongDate) ‘ displays a date in the long format,
‘ uses computer’s regional settings
Days of Week Constants
Constant Value Description
vbUseSystem 0 Use system value
vbSunday 1 Sunday (Default)
vbMonday 2 Monday
vbTuesday 3 Tuesday
vbWednesday 4 Wednesday
vbThursday 5 Thursday
vbFriday 6 Friday
New Years Week Constants
Constant Value Description
vbUseSystem 0 Use system value
vbFirstJan1 1 Start with the week in which January 1st occurs (default)
vbFirstFourDays 2 Start with the week that has at least four days in the new year
vbFirstFullWeek 3 Start with the first complete week of the new year
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