Re: [Boost-users] date_time: convert std::time_t to printable date inlocal time

From: Moshe Matitya (Moshe.Matitya_at_[hidden])
Date: 2006-09-21 05:44:51

How about calling localtime() on the time_t value, and then strftime()?

Moshe
 

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] 
> [mailto:boost-users-bounces_at_[hidden]] On Behalf Of 
> Andreas Ntaflos
> Sent: Thursday, September 21, 2006 12:54 AM
> To: boost-users_at_[hidden]
> Subject: [Boost-users] date_time: convert std::time_t to 
> printable date inlocal time
> 
> Hello boost-users, 
> 
> I am quite new to Boost and this is my first post to this list. My 
> problem is quite similar to one posted to this list two years 
> ago [1]. 
> Since there don't seem to be any follow-ups to that message I hope to 
> find an answer by posting here.
> 
> A program of mine reads a Unix timestamp from a database (the 
> field is 
> simply of type NUMERIC(10,0), written to by PHP's time() [2] 
> function) 
> into a `std::time_t time' object, holding the seconds since 
> the epoch, 
> in UTC. No time zone adjustments are applied as far as I understood.
> 
> I need to convert this time_t to a ptime (or any other kind of 
> printable, readable string) with time zone adjustments applied. 
> Converting with the from_time_t() method works fine, except that the 
> resulting date and time are still in UTC.
> 
> What would be the most simple way to have the time_t converted to a 
> ptime with local time zone adjustments? The time zone could 
> be any but 
> it would suffice if it is the one the computer running the program is 
> in. I could even hardcode the time zone into the program.
> 
> Hopefully I made enough sense to have someone knowing help me 
> out. RTFM 
> answers are most welcome, although I have read much of the 
> docs on the 
> date_time library on the Boost homepage. So if possible 
> please point me 
> to the section in the that is relevant to my problem.
> 
> If this is not possible with Boost are there any other 
> functions I could 
> use, probably from the standard library?
> 
> Thanks a lot in advance!
> 
> Andreas
> 
> [1] Very long Google cache link:
> http://www.google.com/search?q=cache:s-MYu63Ev8UJ:lists.boost.
org/MailArchives/boost->
users/msg07310.php+convert+time_t+to+local+time+with+time+zone
> +site:boost.org&hl=en&lr=&client=firefox&strip=1
> [2] http://www.php.net/manual/en/function.time.php
> -- 
> Andreas "daff" Ntaflos 
> Vienna, Austria 
> 
> GPG Fingerprint: 6234 2E8E 5C81 C6CB E5EC  7E65 397C E2A8 090C A9B4
>