Hi,

I'm just wondering what's the best way to convert sysTime to local machine's time (zone)?

Is there any library function does this already?


https://dlang.org/phobos/std_datetime_systime.html#SysTime

(The time in SysTime is kept internally in hnsecs from midnight, January 1st, 1 A.D. UTC.)

Thanks.

On 9/24/20 6:22 PM, mw wrote:
> Hi,
> 
> I'm just wondering what's the best way to convert sysTime to local machine's time (zone)?
> 
> Is there any library function does this already?
> 
> 
> https://dlang.org/phobos/std_datetime_systime.html#SysTime
> 
> (The time in SysTime is kept internally in hnsecs from midnight, January 1st, 1 A.D. UTC.)
> 
> Thanks.

It is definitely not easy to find.

https://dlang.org/phobos/std_datetime_systime.html#.SysTime.timezone

SysTime struct contains member fn timezone which will return the current settings' TZ ; you can then apply this TZ to other functions in std.datetime to transform datetimes to the TZ [of your choice].

On Thu, Sep 24, 2020 at 08:36:38PM -0400, James Blachly via Digitalmars-d-learn wrote:
> On 9/24/20 6:22 PM, mw wrote:
[...]
> > I'm just wondering what's the best way to convert sysTime to local
> > machine's time (zone)?
[...]
> It is definitely not easy to find.
> 
> https://dlang.org/phobos/std_datetime_systime.html#.SysTime.timezone
> 
> SysTime struct contains member fn timezone which will return the current settings' TZ ; you can then apply this TZ to other functions in std.datetime to transform datetimes to the TZ [of your choice].

Seriously, this should be put in the std.datetime docs on the first page. It's a common operation that should not require reading through multiple non-trivially long doc pages and piecing it together yourself.

Please file a bug against the docs if there isn't already one.


T

-- 
Nearly all men can stand adversity, but if you want to test a man's character, give him power. -- Abraham Lincoln

On Thursday, 24 September 2020 at 22:22:13 UTC, mw wrote:
> Hi,
>
> I'm just wondering what's the best way to convert sysTime to local machine's time (zone)?
>
> Is there any library function does this already?
>
>
> https://dlang.org/phobos/std_datetime_systime.html#SysTime
>
> (The time in SysTime is kept internally in hnsecs from midnight, January 1st, 1 A.D. UTC.)
>
> Thanks.

This library may help:
https://code.dlang.org/packages/hunt-time