On Tue, Apr 20, 2021 at 11:44:06AM +0200, Lars Munch wrote:
> tm_isdst needs to be initialized to make sure mktime does not fail
> or calculates the wrong time.
No, take a look at the mktime(3) man page. There you will read the
following.
The mktime() function modifies the fields of the tm structure as fol‐
lows: tm_wday and tm_yday are set to values determined from the con‐
tents of the other fields; if structure members are outside their
valid interval, they will be normalized (so that, for example, 40 Oc‐
tober is changed into 9 November); tm_isdst is set (regardless of its
initial value) to a positive value or to 0, respectively, to indicate
whether DST is or is not in effect at the specified time.
Thanks,
Richard
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