[Gambas-user] Date(Now) with time component under Ubuntu?

[Benoît Minisini]

Le 04/12/2018 à 11:23, Rolf-Werner Eilert a écrit :
> To give you an idea of the problem, here is a code snippet from this 
> second application, it is in Form_Open:
> 
> -----
>    t$ = Date(Now)
>    heute = String.Mid(t$, 4, 2) & "-" & String.Left(t$, 2) & "-" & 
> String.Mid(t$, 7, 4)
>    DerTag.Tag = Date(Now)
>    DerTag.Text = "heute, " & Wochentag(Date(Now)) & ", " & 
> Replace(heute, "-", ".")
> -----
> 
> 
> 
> Today (4th December)
> - t$ becomes "12.03.2018 23:00:00"
> - 'heute' of course becomes "12-03-2018"
> 
> Now it's curious:
> - DerTag.Tag becomes "04.12.2018 00:00:00" i. e. day and hour +1 !!
> 
> And of course, it goes wrong here:
> - DerTag.Text becomes "heute, Dienstag, 03.12.2018"
> 
> 
> How to solve this mess???
> 
> Regards
> Rolf
> 
> 

Read carefully the documentation about Date(), avoid implicit conversion 
from Date to String, Read carefully the documentation about Print, 
CStr() and Str(), and just don't mix local and universal date 
representations.

For example, let's analyze the following expression:

t$ = Date(Now) ' Assuming that t$ is a String variable

Now -> Return a Date value corrresponding to the current date & time.

Date(Now) -> Return the date part, in the current localization (i.e. the 
current timezone). It means that the time part is set to 00:00:00, but 
in the current timezone.

t$ = Date(Now) -> Assign the previous date value to a string variable, 
hence applying first the automatic conversion from Date to String. So it 
actually means...

t$ = CStr(Date(Now))

CStr() converts the date into a UTC date representation, not in your 
local representation. So you won't see a pure date: the time is shifted 
according to your timezone.

For the other expressions, I can't tell you, you don't give any 
information about the functions and variable you use.

And I guess it worked before because you used a Gambas version where you 
had a bug in date / string conversion. I can't say more without you 
giving more details.

Regards,

-- 
Benoît Minisini