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https://issues.apache.org/jira/browse/THRIFT-4363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206610#comment-16206610
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Jens Geyer commented on THRIFT-4363:
------------------------------------

We had that discussion a whikle ago on the mailing lists. Main problem here is 
that there are so many (actually used) date/time formats with different offsets 
and precisions across OSes and languages. It's hard to find a common 
denominator, but (personal opinion) it could be worth a try to find one other 
than strings like in [http://www.w3.org/TR/NOTE-datetime|this W3C note] or 
[https://en.wikipedia.org/wiki/ISO_8601|ISO 8601]. 

FWIW, we usually use double for out datetime values here, but I also used C# 
ticks occasionally.

> User-extensible type mappings
> -----------------------------
>
>                 Key: THRIFT-4363
>                 URL: https://issues.apache.org/jira/browse/THRIFT-4363
>             Project: Thrift
>          Issue Type: Wish
>          Components: D - Compiler, D - Library
>            Reporter: Neia Neutuladh
>            Priority: Minor
>
> One of the most common types I deal with is a datetime. Another common type 
> is a time delta. It would be great if these were built in, but that's 
> unlikely to happen soon. Another option is to put this into the library as a 
> relatively generic thing: use an annotation to tell the compiler what D type 
> this thing is, and then have the library figure out how to convert the format 
> given to the requested type, in a way where the user can override things.
> For instance, I have a Timestamp type. It's got an int64 for the epoch second 
> and an int64 for the nanosecond. I want to turn that into a 
> std.datetime.DateTime. Optionally, the library can possibly look for a way to 
> build a DateTime from those components automatically. It won't find one, so 
> it will produce a fallback that simply produces a reasonable exception. I can 
> provide a manual converter on application startup.
> This lets me have a generated object model that looks more like what I would 
> have written by hand.



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