[fpc-pascal] Timezone information in a dataset datetimefield?- updated

[Reinier Olislagers]

On 25-7-2011 11:57, Ludo Brands wrote:
>>> That is also what most of the underlying databases do. They store 
>>> everything in UTC and convert to local time. Only for those that 
>>> support "timezoned" field types (fe. oracle timestamp_TZ) you can 
>>> specify a timezone when entering data. MySQL fe. doesn't 
>> have support for this.
>>>
>>> Ludo
>>>
>>
>> Mmmm. For example, IIRC, Firebird just stores it as entered - 
>> no UTC conversion. Sensible developers on multi country 
>> Firebird db projects would probably store convert date/time 
>> info to UTC in the database.
>>
> 
> I'm talking about internal database storage. On the binary level. If you
> move a database to a system with a different timezone the dates display
> differently when stored internally in UTC.
> 
> Ludo
I understand.

If I remember correctly, Firebird just stores date/time as some bits.
AFAIR, it doesn't convert any given times to/from UTC when
storing/retrieving times.
I'm not willing to play around with timezones and Firebird right now,
though ;)...