Time

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General

Time zones

http://www.iana.org/time-zones

http://everytimezone.com/

Calendar

http://www.timeanddate.com/calendar/?country=9

For accounting: a 5 week month = 5 weeks including a Monday

http://www.moonstick.com/moonstick.htm [1]

http://99percentinvisible.org/episode/the-calendar/
- https://www.reddit.com/r/DIY/comments/3cholo/my_girlfriend_and_i_made_a_pretty_unconventional/

http://qntm.org/calendar [2]

http://nerdiversary.herokuapp.com/1983-11-02

http://calizo.sourceforge.net

Historic Calendars of Europe - generate

Clocks

http://www.theguardian.com/science/2015/apr/19/clockmaker-john-harrison-vindicated-250-years-absurd-claims

https://en.wikipedia.org/wiki/WWVB

http://www.anishathalye.com/2016/12/26/micro-wwvb/ [3]

http://www.prc68.com/I/timefreq.shtml

http://www.limmy.com/deedeespeakingclock/

to sort

http://www.waitbutwhy.com/2013/08/putting-time-in-perspective.html

1h = 3600s 1d = 86400s 1w = 604800s 28d = 2419200s

http://rsnous.com/posts/2014-08-07-pinhole-a-falling-ball-demo.html

time cheatsheet

http://jtnimoy.net/workviewer.php?q=178

http://www.whatsthetimethere.netai.net/msm/

http://www.fourmilab.ch/documents/calendar/

http://ilyabirman.net/projects/forebruary/

https://snipt.net/dogstarchampion/metric-time-indicator-for-ubuntu-unity/

http://poisson.phc.unipi.it/~maggiolo/index.php/2014/01/how-much-is-time-wrong-around-the-world/

https://en.wikipedia.org/wiki/Runic_calendar

http://pagancalendar.co.uk/

http://skreksto.re/products/durr

http://www.iers.org/nn_10398/IERS/EN/Science/EarthRotation/UT1-TAI.html?__nnn=true

http://www.visualnews.com/2014/03/17/artist-spent-month-creating-digital-sundial-says-dont-throw-watch/

https://news.ycombinator.com/item?id=11094274

https://news.ycombinator.com/item?id=7965317

http://www.moongiant.com/

http://procyonic.org/clocks/ [5]

http://www.famsi.org/research/vanstone/2012/index.html

http://www.hexahedria.com/experiments/qrclock/index.html

Unix epoch

while true; do echo "$(date +%s)" | figlet ; sleep 0.99 ; done

http://www.epochconverter.com/epoch/clock.php

date -u -d @1400000000
  gives datetime in UTC

NTP

https://news.ycombinator.com/item?id=13650665

Linux

http://man7.org/linux/man-pages/man3/strftime.3.html - time format/template