DAYLIGHT(3P)

💖 DAYLIGHT(3P) 💖

ok so bestie, this is a page from the POSIX Programmer's Manual — that's the big official standards doc energy, not just some random Linux thing. It's the DAYLIGHT page, section 3P, and yes we're about to get into daylight savings time flags. iconic.

🌸 PROLOG 🌸

okay real talk before we start — this manual page is part of the POSIX Programmer's Manual. A couple things you need to know, no cap:

• The Linux implementation of this interface may differ — so if you're on Linux, go consult the corresponding Linux manual page for the actual deets on Linux behavior.
• Or, honestly? The interface may not be implemented on Linux at all. so. yeah. just a heads up, bestie.

✨ NAME ✨

daylight — the daylight savings time flag. that's it, that's the whole vibe 💅

🎀 SYNOPSIS 🎀

#include <time.h>

extern int daylight;

look at her. tiny. elegant. just a little extern int sitting there minding her business 🦋

🌈 DESCRIPTION 🌈

So what does daylight actually do? Literally just:

Refer to tzset().

that's the entire description, bestie. the manpage said "go read tzset()" and honestly? valid. if you wanna know what daylight is about, tzset() is your girl. iykyk 💜

💀 COPYRIGHT 💀

okay this is the part where we get ✨legally✨ serious, so pay attention:

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group.

In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. like, that's the final boss. the original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

fr fr, if something looks cursed in here, it's probably a formatting glitch from the conversion, not the actual standard. report it at the link above and move on 🫶

and that's the whole page, bestie!! short, sweet, and legally binding 🎀 this lil beauty came to you from IEEE/The Open Group, 2017 — mwah, ty for the lore, now go read tzset() 💖✨👑