Daga 2035, ba za a ƙara ƙarin daƙiƙai don daidaita agogo tare da lokacin nazarin sararin samaniya ba.
A babban taron ma'auni da ma'auni. an yanke shawarar, daga akalla 2035, don dakatar da aiki tare na lokaci-lokaci na agogon atomic. na bayanin duniya tare da lokacin astronomical na Duniya.
Wannan ya faru ne saboda rashin daidaituwar jujjuyawar duniya. agogon astronomical sun dan kadan a bayan wadanda ake magana akai, kuma don daidaita daidai lokacin, tun daga 1972, ana dakatar da agogon atomic da daƙiƙa guda a kowace ƴan shekaru, da zarar bambanci tsakanin lokacin tunani da agogon taurari ya kai daƙiƙa 0,9 (gyaran na ƙarshe na wannan nau'in shine shekaru 8 da suka gabata).
Yanzu, farawa a cikin 2035, aiki tare zai ƙare kuma bambanci tsakanin Coordinated Universal Time (UTC) da lokacin astronomical (UT1, ma'anar lokacin rana) zai taru.
An tattauna batun dakatar da karin dakika guda a Ofishin Ma'auni da Ma'auni na Duniya tun 2005, amma an dage yanke shawarar akai-akai. A cikin dogon lokaci, motsin duniya yana raguwa a hankali saboda tasirin tasirin hasken wata, kuma tazara tsakanin daidaitawa yana raguwa da lokaci, misali, idan aka ci gaba da ci gaba bayan shekaru 2000, dole ne mutum ya jira. sabon sakan da za a ƙara kowane wata.
Juyawa a cikin sigogin juyawa na duniya bazuwar yanayi ne kuma canjinsa, wanda aka lura a cikin 'yan shekarun nan, na iya haifar da buƙatar kada a ƙara, amma don rage ƙarin daƙiƙa.
A matsayin madadin aiki tare na biyu da na biyu, ana la'akari da yiwuwar aiki tare tare da tara canje-canje ta minti 1 ko awa 1, wanda zai buƙaci gyara lokaci kowane ƙarni da yawa. Ana sa ran yanke shawara ta ƙarshe akan ƙarin hanyar aiki tare kafin 2026.
Matakin dakatarwa lokaci a sakan daya ya faru ne saboda kurakuran da yawa a cikin tsarin software dangane da gaskiyar cewa yayin aiki tare 61 seconds sun bayyana a cikin ɗayan mintuna. A cikin 2012, irin wannan aiki tare ya haifar da gazawa mai yawa a cikin tsarin uwar garken da aka saita don daidaita daidai lokacin ta amfani da yarjejeniyar NTP.
Saboda rashin son ɗaukar bayyanar ƙarin na biyu, wasu tsarin sun makale a cikin madauki kuma sun fara cinye albarkatun CPU marasa amfani. A cikin aiki tare na gaba, wanda ya faru a cikin 2015, da alama an yi la'akari da abubuwan baƙin ciki na baya, amma a cikin kernel na Linux, yayin gwaje-gwaje na farko, an sami bug (kafaffen kafin daidaitawa), wanda ya sa wasu masu ƙidayar lokaci suyi gudu ɗaya daƙiƙa ɗaya kafin jadawalin.
Duk da cewa a cikin dogon lokaci jujjuyawar duniya tana tafiyar hawainiya sakamakon jajircewar wata, saurin da aka samu tun shekarar 2020 shi ma ya sanya matsalar ta kara dagulewa domin a karon farko, ana iya cire tsalle na biyu, maimakon karawa. UTC sai an rage gudu na dakika daya don jira Duniya, ba tsallakewa don kamawa ba. "An bayyana shi a matsayin matsalar Y2K, domin abu ne da ba mu taba fuskantar ba," in ji Donley, yayin da yake magana kan kurakuran kwamfuta da ake sa ran faruwa a farkon shekarun 2000.
Tun da yawancin sabar NTP na jama'a suna ci gaba da ba da ƙarin daƙiƙa kamar yadda yake, ba tare da blurring shi a cikin jerin tazara ba, kowane aiki tare da agogon tunani ana la'akari da shi azaman gaggawar da ba za a iya faɗi ba (a cikin lokacin tun lokacin aiki tare na ƙarshe, suna sarrafa manta game da matsalar kuma suna aiwatar da lambar da ba ta la'akari da halayen da ke ciki ba. tambaya).
Matsaloli kuma suna tasowa a tsarin kuɗi da masana'antu, wanda ke buƙatar sahihancin sa ido kan hanyoyin aiki. Abin lura ne cewa kurakurai masu alaƙa da ƙarin na biyu suna bayyana ba kawai a lokacin aiki tare ba, har ma a wasu lokuta, alal misali, kwaro a cikin lambar don gyara bayyanar ƙarin na biyu a cikin GPSD ya haifar da canjin lokaci na makonni 1024. a cikin Oktoba 2021. Yana da wuya a yi tunanin menene abubuwan da ba za a ƙara su ba, amma rage na biyu na iya haifar da.
Abin sha'awa shine, ƙarewar aiki tare yana da koma baya, wanda zai iya rinjayar aikin tsarin da aka tsara don UTC da UT1 sau ɗaya. Matsaloli na iya tasowa a cikin ilmin taurari (misali, lokacin daidaita na'urorin hangen nesa) da tsarin tauraron dan adam.
Source: https://www.nature.com/