Re: Unexpected behaviour with os.date("!%s")

[Dirk Laurie <dirk.laurie@...>]

LuaJIT does exactly the same. So while unexpected,
the behaviour is not unreasonable.

In fact, "EST+9" seems to suggest "take EST, and add 9 hours it",
whereas "-0700 (PDT)" a


2014-07-21 7:03 GMT+02:00 Daurnimator <quae@daurnimator.com>:
> In Lua 5.1, when you have a non-UTC timezone (e.g. set TZ="EST+9")
> When you run: `os.date("!%s")` it will give you a timestamp doubly-adjusted
> for your time zone.
>
>     $ lua5.1 <<< 'print(os.date("!%s",1234567890))'
>     1234600290
>
> This seems to be an unfortunate side effect of how %s is specified:
>> The number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).
>> (TZ)
>
> This isn't an issue in Lua 5.2, as
> http://www.lua.org/source/5.2/loslib.c.html#LUA_STRFTIMEOPTIONS does not
> include "s"
>
> Daurn.