corpus.blog
Claim your blog
Record · corpus.blog/posts/01a08c5c-3134-73b0-b1a5-54dadb340961

Time on Unix

Venam's Blog — Patrick Louis (Lebanon) · published 1 May 2020

A record is what was published and who pointed at it. The text of the post is not held here: read it at the source, or at its Wayback capture.

Read the post at venam.net Wayback capture
0blogs citing
First cited
—
Most recent
—
Rank this month
not ranked
External links
193
Words captured
19,413

Cited by

No blog we hold has cited this post yet.

Links from this post

Link
Host
https://www.uninformativ.de/blog/postings/2020-08-29/0/POSTING-en.html
uninformativ.de
https://www.total-knowledge.com/~ilya/mips/ugt.html
total-knowledge.com
https://en.m.wikipedia.org/wiki/Swatch_Internet_Time
en.m.wikipedia.org
https://en.wikipedia.org/wiki/Leap_year
en.wikipedia.org
https://en.wikipedia.org/wiki/Solar_time
en.wikipedia.org
https://en.wikipedia.org/wiki/Clock_drift
en.wikipedia.org
https://en.wikipedia.org/wiki/Civil_time
en.wikipedia.org
https://en.wikipedia.org/wiki/Time_zone
en.wikipedia.org
https://en.wikipedia.org/wiki/Prime_meridian
en.wikipedia.org
https://en.wikipedia.org/wiki/Standard_time
en.wikipedia.org
https://en.wikipedia.org/wiki/Greenwich_Mean_Time
en.wikipedia.org
https://en.wikipedia.org/wiki/Universal_Time
en.wikipedia.org
https://en.wikipedia.org/wiki/Coordinated_Universal_Time
en.wikipedia.org
http://en.wikipedia.org/wiki/Daylight_saving_time
en.wikipedia.org
https://www.ibm.com/support/knowledgecenter/ssw_aix_71/filesreference/LC_TIME.html
ibm.com
http://joeyh.name/blog/entry/howto_create_your_own_time_zone/
joeyh.name
https://en.wikipedia.org/wiki/Unix_time
en.wikipedia.org
https://en.wikipedia.org/wiki/C_date_and_time_functions
en.wikipedia.org
https://en.cppreference.com/w/c/chrono/time_t
en.cppreference.com
http://en.wikipedia.org/wiki/Year_2038_problem
en.wikipedia.org
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/s2-proc-uptime
access.redhat.com
https://en.wikipedia.org/wiki/Time_%28Unix%29
en.wikipedia.org
https://en.wikipedia.org/wiki/Industry_Standard_Architecture
en.wikipedia.org
https://www.freebsd.org/cgi/man.cgi?query=adjkerntz&sektion=8&manpath=freebsd-release-ports
freebsd.org
https://en.wikipedia.org/wiki/System_time
en.wikipedia.org
https://docs.slackware.com/howtos:hardware:syncing_hardware_clock_and_system_local_time
docs.slackware.com
https://en.wikipedia.org/wiki/High_Precision_Event_Timer
en.wikipedia.org
https://en.wikipedia.org/wiki/Time_Stamp_Counter
en.wikipedia.org
https://man7.org/linux/man-pages/man2/clock_gettime.2.html
man7.org
https://elinux.org/Kernel_Timer_Systems
elinux.org
https://elinux.org/High_Resolution_Timers
elinux.org
https://www.freebsd.org/cgi/man.cgi?query=eventtimers&sektion=4&manpath=freebsd-release-ports
freebsd.org
https://www.freebsd.org/cgi/man.cgi?query=eventtimers&apropos=0&sektion=9&manpath=FreeBSD+9-current&format=html
freebsd.org
https://www.freebsd.org/cgi/man.cgi?query=hpet&sektion=4&manpath=freebsd-release-ports
freebsd.org
https://en.wikipedia.org/wiki/CHU_(radio_station
en.wikipedia.org
https://en.wikipedia.org/wiki/WWV_(radio_station
en.wikipedia.org
https://en.wikipedia.org/wiki/Global_Positioning_System
en.wikipedia.org
https://en.wikipedia.org/wiki/Time_dilation
en.wikipedia.org
https://lobste.rs/s/6iemve/fun_fact_gps_uses_10_bits_store_week_means
lobste.rs
https://en.wikipedia.org/wiki/Network_Time_Protocol
en.wikipedia.org
http://en.wikipedia.org/wiki/Precision_Time_Protocol
en.wikipedia.org
https://events.static.linuxfound.org/sites/events/files/slides/lcjp14_ichikawa_0.pdf
events.static.linuxfound.org
https://en.wikipedia.org/wiki/Time_formatting_and_storage_bugs
en.wikipedia.org
https://www.ibm.com/support/knowledgecenter/en/SSAL2T_8.2.0/com.ibm.cics.tx.doc/concepts/c_wht_is_distd_comptg.html
ibm.com
https://www.unix.com/pdf/CEP_in_distributed_systems.pdf
unix.com
https://en.wikipedia.org/wiki/Clock_synchronization
en.wikipedia.org
https://gist.github.com/mutin-sa/eea1c396b1e610a2da1e5550d94b0453
gist.github.com
https://support.ntp.org/bin/view/Servers/StratumTwoTimeServers?ref=ghost.parkercs.tech
support.ntp.org
What Is Time? A Simple Explanation
thoughtco.com
https://www.youtube.com/watch?v=tpdphvYpXmQ
youtube.com
http://www.exactlywhatistime.com/physics-of-time/
exactlywhatistime.com
https://www.quantamagazine.org/what-is-time-a-history-of-physics-biology-clocks-and-culture-20200504/
quantamagazine.org
https://en.wikipedia.org/wiki/Year
en.wikipedia.org
https://en.wikipedia.org/wiki/Second
en.wikipedia.org
https://www.space.fm/astronomy/earthmoonsun/eotcalculations.html
space.fm
https://www.space.fm/astronomy/earthmoonsun/equationoftime.html
space.fm
https://www.space.fm/astronomy/earthmoonsun/apparentmeansun.html
space.fm
https://www.timeanddate.com/time/international-atomic-time.html
timeanddate.com
https://www.space.fm/astronomy/earthmoonsun/timezones.html
space.fm
https://www.timeanddate.com/time/local-mean-time.html
timeanddate.com
https://github.com/eggert/tz/blob/master/leap-seconds.list
github.com
https://www.uninformativ.de/blog/postings/2018-09-15/0/POSTING-en.html
uninformativ.de
https://www.timeanddate.com/news/time/eu-scraps-dst.html
timeanddate.com
https://fanf.dreamwidth.org/133823.html
fanf.dreamwidth.org
https://cr.yp.to/proto/utctai.html
cr.yp.to
https://www.computerhope.com/unix/udate.htm
computerhope.com
https://wiki.archlinux.org/index.php/Locale
wiki.archlinux.org
https://en.wikipedia.org/wiki/Zoneinfo
en.wikipedia.org
https://unix.stackexchange.com/questions/110522/timezone-setting-in-linux
unix.stackexchange.com
https://www.jusfeel.com/2018/10/28/TimeZone-Explained/
jusfeel.com
https://unix.stackexchange.com/questions/314424/how-often-is-usr-share-zoneinfo-updated
unix.stackexchange.com
https://alexwlchan.net/2019/05/falsehoods-programmers-believe-about-unix-time/
alexwlchan.net
https://en.wikipedia.org/wiki/Uptime
en.wikipedia.org
http://www.brendangregg.com/blog/2017-08-08/linux-load-averages.html
brendangregg.com
https://linux.die.net/man/1/time
linux.die.net
https://en.wikipedia.org/wiki/Timestamp
en.wikipedia.org
https://engineering.q42.nl/why-always-use-utc-is-bad-advice/
engineering.q42.nl
http://yellerapp.com/posts/2015-01-12-the-worst-server-setup-you-can-make.html
yellerapp.com
https://www.unixtutorial.org/atime-ctime-mtime-in-unix-filesystems/
unixtutorial.org
mtime comparison considered harmful Read at the source ↗
apenwarr.ca
https://unix.stackexchange.com/questions/109003/what-are-the-legitimate-uses-of-the-touch-command
unix.stackexchange.com
https://www.quora.com/What-is-the-etymology-of-cron
quora.com
https://minnie.tuhs.org/cgi-bin/utree.pl?file=V7/usr/src/cmd/cron.c
minnie.tuhs.org
https://www.cyberciti.biz/faq/how-do-i-add-jobs-to-cron-under-linux-or-unix-oses/
cyberciti.biz
New helper added: crontab.guru – Create and understand cron time fields.
crontab.guru
https://mjanja.ch/2015/06/replacing-cron-jobs-with-systemd-timers/
mjanja.ch
https://unix.stackexchange.com/questions/278564/cron-vs-systemd-timers
unix.stackexchange.com
http://tldp.org/HOWTO/Clock.html
tldp.org
https://linux.die.net/man/8/hwclock
linux.die.net
https://linux.die.net/man/8/adjtimex
linux.die.net
https://elixir.bootlin.com/linux/v5.0/source/kernel/time/timekeeping.c
elixir.bootlin.com
https://unix.stackexchange.com/questions/285129/switch-off-11-minute-kernel-mode
unix.stackexchange.com
https://www.systutorials.com/linux-setting-date-time-and-timezone/
systutorials.com
https://www.cyberciti.biz/faq/unix-set-date-command/
cyberciti.biz
http://www.ctyme.com/intr/rb-0043.htm
ctyme.com
https://elixir.bootlin.com/linux/v5.0/source/include/uapi/linux/timex.h
elixir.bootlin.com
https://elixir.bootlin.com/linux/v5.0/source/kernel/time/ntp.c
elixir.bootlin.com
http://btorpey.github.io/blog/2014/02/18/clock-sources-in-linux/
btorpey.github.io
https://unix.stackexchange.com/questions/164512/what-does-the-change-of-the-clocksource-influence
unix.stackexchange.com
http://www.chromium.org/chromium-os/how-tos-and-troubleshooting/tsc-resynchronization
chromium.org
https://stackoverflow.com/questions/3523442/difference-between-clock-realtime-and-clock-monotonic
stackoverflow.com
https://www.kernel.org/doc/Documentation/timers/timekeeping.txt
kernel.org
https://cyberglory.wordpress.com/2011/08/21/jiffies-in-linux-kernel/
cyberglory.wordpress.com
https://www.kernel.org/doc/Documentation/timers/highres.txt
kernel.org
https://lwn.net/Articles/223185/
lwn.net
https://lkml.org/lkml/2005/10/19/46
lkml.org
https://access.redhat.com/solutions/18627
access.redhat.com
https://github.com/torvalds/linux/blob/master/Documentation/admin-guide/kernel-parameters.txt
github.com
https://circuitcellar.com/cc-blog/tinkering-with-time/
circuitcellar.com
https://lobste.rs/s/jeeq9d
lobste.rs
http://www.leapsecond.com/java/gpsclock.htm
leapsecond.com
http://alternativephysics.org/book/GPSmythology.htm
alternativephysics.org
http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html
astronomy.ohio-state.edu
https://www.e-education.psu.edu/geog862/node/1875
e-education.psu.edu
http://esr.ibiblio.org/?p=2869
esr.ibiblio.org
http://esr.ibiblio.org/?p=2882
esr.ibiblio.org
http://doc.ntp.org/4.1.2/refclock.htm
doc.ntp.org
https://www.eecis.udel.edu/~ntp/ntpfaq/NTP-s-algo.htm
eecis.udel.edu
http://doc.ntp.org/4.1.2/extern.htm
doc.ntp.org
https://tools.ietf.org/html/rfc868
tools.ietf.org
https://tools.ietf.org/html/rfc5905
tools.ietf.org
Packet Capture: Network Time Protocol (NTP) Read at the source ↗
weberblog.net
https://networking.ringofsaturn.com/Protocols/ntp.php
networking.ringofsaturn.com
https://news.ntppool.org/2012/06/more-servers-please/
news.ntppool.org
https://www.masterclock.com/company/masterclock-inc-blog/network-synchronization-internet-ntp-servers-vs-gps-ntp-servers
masterclock.com
http://tf.nist.gov/tf-cgi/servers.cgi
tf.nist.gov
https://www.eecis.udel.edu/~mills/ntp/html/ntpd.html
eecis.udel.edu
https://archive.li/l4A9J
archive.li
http://doc.ntp.org/4.2.8/miscopt.html
doc.ntp.org
https://support.ntp.org/bin/view/Support/AddingNTPServerVariables
support.ntp.org
https://unix.stackexchange.com/questions/232767/does-ntpd-have-a-default-driftfile
unix.stackexchange.com
https://git.busybox.net/busybox/tree/networking/ntpd.c
git.busybox.net
http://doc.ntp.org/4.1.0/ntpq.htm
doc.ntp.org
https://linux.die.net/man/1/rdate
linux.die.net
http://seriot.ch/ntp.php
seriot.ch
https://chrony.tuxfamily.org/comparison.html
chrony.tuxfamily.org
https://www.best-microcontroller-projects.com/ppm.html
best-microcontroller-projects.com
https://www.dataq.com/blog/data-logger/whats-all-this-ppm-stuff/
dataq.com
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/NtpdToChrony
utcc.utoronto.ca
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/NTPDaemonWhyAvoid
utcc.utoronto.ca
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/NTPDaemonWhen
utcc.utoronto.ca
http://cr.yp.to/clockspeed.html
cr.yp.to
https://wiki.archlinux.org/index.php/Systemd-timesyncd
wiki.archlinux.org
https://utcc.utoronto.ca/~cks/space/blog/linux/SwitchingToTimesyncd
utcc.utoronto.ca
https://utcc.utoronto.ca/~cks/space/blog/linux/SystemdTimesyncdFailure
utcc.utoronto.ca
http://rkeene.org/oss/htp/
rkeene.org
http://rkeene.org/docs/oss/htp/htp.pdf
rkeene.org
https://www.techopedia.com/definition/4539/simple-network-time-protocol-sntp
techopedia.com
https://www.eecis.udel.edu/~mills/ntp/html/extern.html
eecis.udel.edu
https://www.eecis.udel.edu/~mills/ntp/html/discipline.html
eecis.udel.edu
https://developers.google.com/time/smear
developers.google.com
Leap seconds: Causing Bugs Even When They Don't Happen Read at the source ↗
berthub.eu
https://cloud.google.com/blog/products/gcp/making-every-leap-second-count-with-our-new-public-ntp-servers
cloud.google.com
https://dotat.at/@/2022-12-04-leap-seconds.html
dotat.at
https://queue.acm.org/detail.cfm?id=1967009
queue.acm.org
https://www.youtube.com/watch?v=ylfyezRhA5s
youtube.com
https://www.coreinfrastructure.org/news/blogs/2017/09/securing-network-time
coreinfrastructure.org
https://www.ntpsec.org/
ntpsec.org
http://www.ntp.org/ntpfaq/NTP-s-algo-crypt.htm
ntp.org
https://securityintelligence.com/news/how-the-kiss-odeath-packet-and-other-ntp-vulnerabilities-could-turn-back-the-internets-clocks/
securityintelligence.com
https://strugglers.net/~andy/blog/2018/12/24/the-internet-of-unprofitable-things/
strugglers.net
https://www.ijs.si/time/temp-compensation/
ijs.si
https://blog.dan.drown.org/beaglebone-black-ntpgps-server-temperature-compensation-part-2/
blog.dan.drown.org
https://forums.parallax.com/discussion/130410/timing-drift-how-do-you-read-ppm
forums.parallax.com
https://timemachinescorp.com/2018/11/06/ntp-vs-ptp-whats-the-difference/
timemachinescorp.com
https://www.cs.rutgers.edu/~pxk/417/notes/ptp.html
cs.rutgers.edu
https://blog.meinbergglobal.com/2013/10/21/ieee-1588-clock-types/
blog.meinbergglobal.com
https://ubuntuforums.org/showthread.php?t=2327884
ubuntuforums.org
https://www.timemachinescorp.com/wp-content/uploads/TMTimeServerAccuracyRevB.pdf
timemachinescorp.com
Clock synchronization with Chris Perl
signalsandthreads.com
http://mathieu.delalandre.free.fr/teachings/dcomputing/part2.pdf
mathieu.delalandre.free.fr
https://serverfault.com/questions/284638/what-consequences-implications-can-arise-from-a-wrong-system-clock
serverfault.com
https://aphyr.com/posts/299-the-trouble-with-timestamps
aphyr.com
https://caolan.uk/articles/time-disorder/
caolan.uk
http://www.ni.com/white-paper/3938/en/
ni.com
https://journals.sagepub.com/doi/full/10.1016/j.jala.2006.10.016
journals.sagepub.com
https://www.electronicshub.org/real-time-operating-system-rtos/
electronicshub.org
http://www.inf.ed.ac.uk/teaching/courses/es/PDFs/RTOS.pdf
inf.ed.ac.uk
https://www.intervalzero.com/real-time-2/the-many-challenges-of-real-time-linux/
intervalzero.com
https://www.linuxfoundation.org/blog/2013/03/intro-to-real-time-linux-for-embedded-developers/
linuxfoundation.org
https://www.freertos.org/FAQWhat.html
freertos.org
https://www.riot-os.org/
riot-os.org
https://www.quora.com/What-are-some-Real-Time-Operating-Systems-RTOS-that-NASA-has-used-and-why
quora.com
https://web.archive.org/web/20070418040642/http://users.wmin.ac.uk/~beusdul/papers/scsc-space.pdf
web.archive.org
https://www.rapitasystems.com/blog/cooperative-and-preemptive-scheduling-algorithms
rapitasystems.com
Building a BlackBerry QNX 7 Desktop Read at the source ↗
membarrier.wordpress.com
A Quick Update Read at the source ↗
membarrier.wordpress.com
https://blackberry.qnx.com/en
blackberry.qnx.com
https://en.wikipedia.org/wiki/QNX
en.wikipedia.org
https://elisa.tech/
elisa.tech
https://lwn.net/Articles/780493/rss
lwn.net
https://www.linuxfoundation.org/press-release/2019/02/the-linux-foundation-launches-elisa-project-enabling-linux-in-safety-critical-systems/
linuxfoundation.org
https://sdtimes.com/softwaredev/the-linux-foundation-launches-new-project-to-enable-linux-in-safety-critical-applications/
sdtimes.com
Elsewhere on venam.net (1)