[Neos] Neos DateTime handling

[Dominique Feyer]

Intersting discussion on this topic on StackOverflow:
http://stackoverflow.com/questions/10834665/how-can-i-handle-time-zones-in-my-webapp

For my point of view, timezone is a user parameter (user preference or auto detection is an other story), but always storing in UTC make a lots of sense.

My two cents ;)

-- 
Dominique Feyer
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Le 18 mars 2014 à 21:30:04, Rens Admiraal (rens.admiraal at typo3.org) a écrit:

Hi all,  

Today I played around with the datepicker so see how the time / datetime  
capabilities work. It seems to work pretty awesome, you can for example  
create a timepicker by using the following config:  

time:  
type: date  
ui:  
label: 'Some Time'  
inspector:  
editorOptions:  
format: 'h:ii'  
group: 'someGroup'  

Or date + time picker by using:  

dateAndTime:  
type: date  
ui:  
label: 'Some Date with Time'  
inspector:  
editorOptions:  
format: 'dd-mm-yyyy h:ii'  
group: 'someGroup'  


As you can see, just setting the format is enough. *BUT* we do have an  
issue here. As the original datepicker did only support dates we  
hardcoded the transfer format between the client and server in:  
'yyyy-mm-dd'. This is done in the DateTimeEditor (js),  
ContentElementWrappingService (Neos) and NodeConverter (CR). This causes  
the time information to get lost on storage, so we need to fix that in  
some way.  

I played around with the code and come up with:  
https://review.typo3.org/#/q/status:open+branch:master+topic:datetime,n,z  

I tried to use the \DateTime::ISO8601 constant, but that one adds an  
offset which causes troubles on the client side at the moment. So I used  
the ISO8601 format without offset.  

But before digging too deep it might make sense to step back a little  
and decide how we want to handle timezone differences between server and  
client and so on.  

Do you have any thoughts on that?  

Greetz,  
Rens  
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