diff --git a/backport-Cite-Mirmalek-on-Martian-timekeeping.patch b/backport-Cite-Mirmalek-on-Martian-timekeeping.patch new file mode 100644 index 0000000..1f33044 --- /dev/null +++ b/backport-Cite-Mirmalek-on-Martian-timekeeping.patch @@ -0,0 +1,89 @@ +From efbae189bc3eb2b7c1efbe79ed6e2ab7b22cae24 Mon Sep 17 00:00:00 2001 +From: Paul Eggert +Date: Tue, 30 Jun 2020 16:39:43 -0700 +Subject: [PATCH 18/47] Cite Mirmalek on Martian timekeeping +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +* theory.html (Time and time zones on other planets): +Update discussion of Martian timekeeping and cite Mirmalek 2020. +(Thanks to Michelle Bastian for a pointer to Mirmalek’s earlier work.) +--- + theory.html | 31 +++++++++++++++++++++---------- + 1 file changed, 21 insertions(+), 10 deletions(-) + +diff --git a/theory.html b/theory.html +index 1a5b568..22b9815 100644 +--- a/theory.html ++++ b/theory.html +@@ -1327,17 +1327,21 @@ They sometimes disagree. +
+

Time and time zones on other planets

+

+-Some people's work schedules +-use Mars time. ++Some people's work schedules have used ++Mars time. + Jet Propulsion Laboratory (JPL) coordinators kept Mars time on + and off during the + Mars +-Pathfinder mission. ++Pathfinder mission (1997). + Some of their family members also adapted to Mars time. + Dozens of special Mars watches were built for JPL workers who kept +-Mars time during the Mars Exploration Rovers mission (2004). +-These timepieces look like normal Seikos and Citizens but use Mars +-seconds rather than terrestrial seconds. ++Mars time during the ++Mars ++Exploration Rovers (MER) mission (2004–2018). ++These timepieces looked like normal Seikos and Citizens but were adjusted ++to use Mars seconds rather than terrestrial seconds, although ++unfortunately the adjusted watches were unreliable and appear to have ++had only limited use. +

+ +

+@@ -1345,6 +1349,8 @@ A Mars solar day is called a "sol" and has a mean period equal to + about 24 hours 39 minutes 35.244 seconds in terrestrial time. + It is divided into a conventional 24-hour clock, so each Mars second + equals about 1.02749125 terrestrial seconds. ++(One MER worker noted, "If I am working Mars hours, and Mars hours are ++2.5% more than Earth hours, shouldn't I get an extra 2.5% pay raise?") +

+ +

+@@ -1360,12 +1366,12 @@ called Mars Coordinated Time (MTC). +

+ Each landed mission on Mars has adopted a different reference for + solar timekeeping, so there is no real standard for Mars time zones. +-For example, the +-Mars +-Exploration Rover project (2004) defined two time zones "Local ++For example, the MER mission defined two time zones "Local + Solar Time A" and "Local Solar Time B" for its two missions, each zone + designed so that its time equals local true solar time at + approximately the middle of the nominal mission. ++The A and B zones differ enough so that an MER worker assigned to ++the A zone might suffer "Mars lag" when switching to work in the B zone. + Such a "time zone" is not particularly suited for any application + other than the mission itself. +

+@@ -1414,7 +1420,12 @@ Sources for time on other planets: + Michael Allison and Robert Schmunk, + "Technical + Notes on Mars Solar Time as Adopted by the Mars24 Sunclock" +- (2018-12-13). ++ (2020-03-08). ++ ++
  • ++ Zara Mirmalek, ++ Making ++ Time on Mars, MIT Press (March 2020), ISBN 978-0262043854. +
    • +
  • + Jia-Rui Chong, +-- +1.8.3.1 + diff --git a/backport-Cite-Rishi-et-al-in-tz-link.patch b/backport-Cite-Rishi-et-al-in-tz-link.patch new file mode 100644 index 0000000..b51f9ba --- /dev/null +++ b/backport-Cite-Rishi-et-al-in-tz-link.patch @@ -0,0 +1,42 @@ +From d7451484e7b947b79c30dff4304a599f6c1e470e Mon Sep 17 00:00:00 2001 +From: Paul Eggert +Date: Fri, 28 Aug 2020 17:54:22 -0700 +Subject: [PATCH 30/47] Cite Rishi et al in tz-link + +* tz-link.html (Costs and benefits of time shifts): +Add citation. (Thanks to Arthur David Olson.) +--- + tz-link.html | 10 +++++++++- + 1 file changed, 9 insertions(+), 1 deletion(-) + +diff --git a/tz-link.html b/tz-link.html +index 8141d71..6dcb654 100644 +--- a/tz-link.html ++++ b/tz-link.html +@@ -905,7 +905,8 @@ href="http://sohma.armada.mil.uy/index.php/servicios/datos-astronomicos" hreflan +

    Costs and benefits of time shifts

    +

    Various sources argue for and against daylight saving time and time + zone shifts, and many scientific studies have been conducted. This +-section summarizes reviews of scientific literature in the area.

    ++section summarizes reviews and position statements based on ++scientific literature in the area.

    +