(Visual Basic 6.0) Date/Time Expires Within N Seconds/Minutes/Hours/Days

Demonstrates the how to tell if a date/time is within N seconds, minutes, hours, or days of the current system time.

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Dim dt As New CkDateTime

' Set to the current system date/time.
success = dt.SetFromCurrentSystemTime()
Debug.Print "Now: " & dt.GetAsTimestamp(1)

' Add 10 minutes, making the date 10 minutes in the future.
success = dt.AddSeconds(600)
Debug.Print "10 minutes from now: " & dt.GetAsTimestamp(1)

' Is the date/time within 10 seconds of expiration (i.e. within 10 seconds of now)?
Dim b As Long
b = dt.ExpiresWithin(10,"seconds")
Debug.Print "Expires within 10 seconds: " & b

' Does the date/time expire within 5 minutes?
b = dt.ExpiresWithin(5,"minutes")
Debug.Print "Expires within 5 minutes: " & b

' Does the date/time expire within 15 minutes?
b = dt.ExpiresWithin(15,"minutes")
Debug.Print "Expires within 15 minutes: " & b

' Does the date/time expire within 1 hour?
b = dt.ExpiresWithin(1,"hour")
Debug.Print "Expires within 1 hour: " & b

' Does the date/time expire within 1 day?
b = dt.ExpiresWithin(1,"day")
Debug.Print "Expires within 1 day: " & b

' Output:

' 	Now: 2017-05-05T23:48:00-0500
' 	10 minutes from now: 2017-05-05T23:58:00-0500
' 	Expires within 10 seconds: False
' 	Expires within 5 minutes: False
' 	Expires within 15 minutes: True
' 	Expires within 1 hour: True
' 	Expires within 1 day: True