Skip to Content
System Programming in Linux
book

System Programming in Linux

by Stewart N. Weiss
October 2025
Intermediate to advanced
1048 pages
29h 35m
English
No Starch Press
Content preview from System Programming in Linux

CDATE AND TIME FORMAT SPECIFIERS

Chapter opening image from the book’s cover; shows a sunflower.

The examples listed in Table C-1 are based on the date of January 19, 2038, at 03:14:07 UTC, the time at which the 32-bit Unix time representation overflows.

Table C-1: Format Specifiers for Date and Time Formatting in the EST Time Zone with Current Locale en_US.UTF-8

Format

Example

Meaning

%a

Mon

Locale’s abbreviated weekday name

%A

Monday

Locale’s full weekday name

%b

Jan

Locale’s abbreviated month name

%B

January

Locale’s full month name

%c

Mon 18 Jan 2038 10:14:07 PM EST

Locale’s date and time

%C

20

Century; like %Y, except omit last two digits

%d

18

Day of month

%D

01/18/38

Date; same ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Linux System Programming, 2nd Edition

Linux System Programming, 2nd Edition

Robert Love

Publisher Resources

ISBN: 0642572230128Errata Page