Come ottenere secondi da epoca (1/1/1970) in VBA?

Question

Come posso ottenere secondi da epoca (1/1/1970) in VBA?

Answer 1

ne dite:

datediff("s",#1970/1/1#,now()) 

Answer 2

Ecco una soluzione: http://vbcity.com/forums/t/5084.aspx

Function UnixTime() As Variant 
    'The first parameter determines how the 
    ' difference will be measured in i.e. "S" for seconds 
    UnixTime = DateDiff("S", "1/1/1970", Now()) 
End Function 

Answer 3

This dovrebbe correre più veloce rispetto alla soluzione DateDiff:

Private Function Long2Date(lngDate As Long) As Date 
    Long2Date = lngDate/86400# + #1/1/1970# 
End Function 

Private Function Date2Long(dtmDate As Date) As Long 
    Date2Long = (dtmDate - #1/1/1970#) * 86400 
End Function