[Lazarus] Google Calendar API TEvent start or _end (TDatetime) question

[Michael Van Canneyt]

On Wed, 3 Jun 2020, Francesco Sammarco wrote:

> sorry I don't understand, you say that just remove the lines where I
> specify the timezone ?!

No, remove the

start_e.dateTime   := LocalTimeToUniversal(start_e.dateTime);

I think it is not necessary if you set the timezone.

Michael.


>
> Il mer 3 giu 2020, 14:51 Michael Van Canneyt <michael at freepascal.org> ha
> scritto:
>
>>
>>
>> On Wed, 3 Jun 2020, Francesco Sammarco via lazarus wrote:
>>
>>> Hi everyone, I have the following problem. I have a calendar (Italian) to
>>> sync with Google Calendar. With the following code I can work quite well.
>>> If today (2020-06-03) I set a new appointment it is saved on google
>>> calendar on the right day and time, but if for example: always today if I
>>> set an appointment for December 10, 2020 at 9 am, I find myself there
>>> appointment set on the right day but at 8 am. (So an hour behind) I think
>>> it's due to the change between sunlight and daylight. Can anyone explain
>> to
>>> me how to solve the problem?
>>>
>>> Thank you
>>> XinYiMan
>>>
>>>
>>>
>>> var
>>>   start_e  : TEventDateTime;
>>>   end_e    : TEventDateTime;
>>>   Entry    : TEvent;
>>> begin
>>>            Entry := FCalendarAPI.EventsResource.Get(CalendarFindedId,
>>> my_id_app);
>>>
>>>                     start_e := TEventDateTime.Create();
>>>                     end_e   := TEventDateTime.Create();
>>>
>>>                     start_e.dateTime   := data_appuntamento;
>>>                     start_e.dateTime   :=
>>> LocalTimeToUniversal(start_e.dateTime);
>>>                     start_e.timeZone   := 'Europe/Rome';
>>
>> If you set the timzeone explicitly, I don't think you must do a
>> LocalTimeToUniversal,
>> I think the timezone is then automatically taken into account. As I
>> understand it you specify the timezone in dateTime or you set it in the
>> timezone.
>>
>> Michael.
>>
>