Ungasishintsha kanjani isikhathi ku-Linux

Kulokhu okuthunyelwe sizobona ukuthi singasishintsha kanjani isikhathi ku-Linux. Akukhona ukuthi kunzima kakhulu njengoba amadeskithophu amaningi afaka izithakathi ezikuvumela ukuthi ukwenze ngokuchofoza okumbalwa, kodwa kuyizaba ezinhle zokufunda kabanzi mayelana nokuthi ikhompuyutha yethu nohlelo lokusebenza lusebenza kanjani.

Emandulo iwashi laliyinto ewubukhazikhazi, into eyayiphiwa njengesipho lapho usuneminyaka engu-25 emsebenzini noma udlulisela njengefa endodaneni endala. Eqinisweni, kwakuyinto yokuqala ubaba nabafowabo bokufika baseGalicia abayithenga njenge-investimenti lapho beqala ukuthola imali e-Argentina.

Kodwa-ke, ngokufika kwamaJapane, izindleko zokukhiqiza zaba ishibhile futhi ngokushesha amanye amadivaysi afana nama-microwaves, ama-VCR ngisho nabenzi bekhofi bahlanganisa lo msebenzi. Lapho amadivaysi eselula eba mkhulu futhi ephatheka, iwashi lesihlakala lakudala lalilahlekelwa ukuvelela. Namuhla isinda ngendlela yama-smartwatches, kodwa ekusebenzeni ayinto nje yocingo.

Angazi ukuthi kungani izinhlelo zokusebenza zibonisa iwashi. Ngicabanga ukuthi ngenxa yokuthi indawo engenalutho kubha yayibukeka kabi futhi, njengoba idinga iwashi ukuze isebenze, ukukhombisa isikhathi kwakungeyona into eyinkimbinkimbi kakhulu.

Ungasishintsha kanjani isikhathi ku-Linux

Uma une-Windows ne-Linux efakwe kwikhompyutha yakho, uzobe ubonile ukuthi, uma uphuma ku-Linux bese ufaka i-Windows, inesikhathi esihlukile kunesendawo. Lokhu kungenxa yokuthi i-Linux ithatha ngokuthi iwashi lehadiwe liyavunyelaniswa ne-Coordinated Universal Time, kuyilapho i-Windows ithatha ukuthi isesikhathini sasendaweni. Isistimu yokusebenza yakamuva ezosetshenziswa ilungisa iwashi lehadiwe ngokwezidingo zalo.

Isixazululo ukwenza iWindows yenze izibalo zayo ngokusekelwe esikhathini se-UTC noma i-Linux ikwenze ngesikhathi sendawo. Kulula kakhulu ukwenza i-Linux ishintshe kusukela lapho kufanele sibhale umyalo:
sudo timedatectl set-local-rtc 1

Ngokuvamile, ukusatshalaliswa kweLinux kukubuza ukuthi iyiphi indawo yesikhathi ongayisebenzisa futhi kusukela lapho kuqhubeke bazolungisa isikhathi ngokuzenzakalelayo.noma ukuthatha ulwazi kwiseva yesikhathi senethiwekhi noma ukwenza izibalo ezihambisanayo kusukela esikhathini esikhonjiswe iseva yesikhathi yendawo yonke. Esimeni lapho ukuxhumeka kuseva yesikhathi senethiwekhi kungatholakali, abathuthukisi bavame ukufaka amafayela anemiyalelo ukuze uhlelo lukwazi ukubala ukuhluka phakathi kwesikhathi sasehlobo nobusika.

Amadeskithophu ahlukene akuvumela ukuthi ubhale ngaphezulu ukuvumelanisa okuzenzakalelayo futhi ukusethe mathupha.

Kusukela ku-terminal singalungisa isikhathi ngomyalo:
sudo timedatectl set-time hh:mm:ss
Isibonelo, ukusetha isikhathi ngekota kuya kweyesithathu ntambama senza:
sudo timedatectl set-time 14:45:00
Ukukhansela ukuvumelanisa okuzenzakalelayo kwesikhathi neseva yenethiwekhi sisebenzisa umyalo:
sudo timedatectl set-ntp false
Ukuyivula kabusha sibhala umyalo:
sudo timedatectl set-ntp true
Singabona izindawo zesikhathi ezitholakalayo nge:
timedatectl list-timezones
Bese ushintsha usuka kwesinye uye kwesinye nge:
timedatectl set-timezone CONTINENTE/PAÍS
o
timedatectl set-timezone Continente/País/Ciudad
Futhi kwezinye izimo
timedatectl set-timezone Continente/Ciudad/Localidad.
Kunoma yikuphi, namathisela njengoba kuvela ohlwini.
Isibonelo:
timedatectl set-timezone America/Indiana/Indianapolis

Uma ungafuni ukushintsha indawo yesikhathi ungabona ukuthi yisiphi isikhathi kwenye ngomyalo:

TZ=Zona_horaria date Ukushintsha indawo yesikhathi ngegama elivela kulo ohlwini. Ngokwesibonelo:
TZ=America/Indiana/Indianapolis date
Ukuze ubone isikhathi ewashini lehadiwe, sebenzisa umyalo:
hwclock -r
Singavumelanisa iwashi lehadiwe newashi lesistimu ngokubhala:
hwclock --systohc

Ezinye izinhlelo zokusebenza ukubona isikhathi

Uma ungalithandi iwashi eliza nedeskithophu yakho, kumakhosombe sinezinhlelo zokusebenza ezimbalwa esivumela ukuthi sibone isikhathi. Ezinye zazo yilezi:

Clocks

Ingase futhi ivele kubaphathi bephakheji ngaphansi kwegama elithi Amawashi. Kuyingxenye yohlelo lokusebenza lwephrojekthi ye-GNOME futhi ihlanganisa izinhlelo ezimbalwa ezihlobene nokulinganisa isikhathi okuhlanganisa:

• Amawashi okukhombisa isikhathi ezingxenyeni ezihlukene zomhlaba.
• Ama-alamu
• Zibali emuva.
• Ama-Stopwatches

Iwashi le-Analog

Itholakala esikhungweni sesoftware ukuze kusatshalaliswe ngokusekelwe kudeskithophu ye-KDE, Leli washi le-analog lengezwa kudeskithophu futhi libonisa ukuhamba kwamahora ngokuma kwezandla.

I-DClock

Esinye isihloko esitholakala ezindaweni zokugcina. Njengoba kukhonjiswe u-D esihlokweni sika-sIwashi ledijithali elenza sengathi libonisa izinombolo ezinamaledi. Ngaphezu kwalokho, ikhombisa usuku futhi ikuvumela ukuthi usethe i-alamu.

i-slashtime

Lolu hlelo lwenqolobane ibonisa isikhathi ezindaweni ezahlukene zomhlaba. ukuze sikwazi ukukubona kufanele nje sibeke ikhesa bese sichofoza kabili edolobheni esifuna ukulibona uhlelo lwalo.

Retro

Iwashi ledijithali lesitayela esidala okubukeka kwayo kungashintshwa kusetshenziswa amashidi esitayela. Itholakala ngefomethi I-Flatpak.

i-timedatecalculator

Kusuka ku isitolo esisheshayo sithola lolu hlelo lokusebenza oluwusizo olubala izinsuku. Ithola imiphumela ngokusekelwe esikhathini sokuqala/sokuphela nebanga lesikhathi noma ibanga lesikhathi kusukela esikhathini sokuqala nesokugcina nedethi

Amakhompyutha akala kanjani isikhathi

Cishe indlela endala yokulinganisa isikhathi ukuma kwelanga. Usuku kwakuyinkathi eyadlula kwaze kwaba yilapho ilanga libuyela endaweni yalo. Isigaba sokuqala sosuku senziwe abapristi baseGibhithe ababelawula isikhathi sokuvela kwezinkanyezi, lokhu kwavumela ukuhlukanisa ubusuku zibe yizinkathi ezingaphansi kwe-12 zesikhathi esilinganayo.

Ngekhulu le-12, kwavela ama-sundials, aphawula ukuhamba kwamahora emini ngokuveza izithunzi. Isikhathi sokucacisa siphinde sahlukaniswa ngamahora angu-XNUMX.

Ukuhlukaniswa kwehora libe yimizuzu engama-60 kuwumthwalo wabaseBabiloni. Babesebenzisa uhlelo lokubala olusekelwe ekusetshenzisweni kwezandla. Ngesithupha sesandla sokudla babebala, bemaka iphalange leminye iminwe emine, uma sekufanele babale ngaphezu kwe-12 baphakamise umunwe wesandla sokunxele. Ngalokho babengabala bafike ku-60.

Ngokuhamba kwesikhathi, kwadalwa izindlela ezihlukene zokurekhoda ukuhamba kwesikhathi kusetshenziswa izindlela ezifana nesithunzi esishiwo ngenhla, amandla adonsela phansi noma isivinini sokusetshenziswa kwekhandlela.

Amakhompiyutha anezindlela ezimbili zokulinganisa ukuhamba kwesikhathi.. Enye isuselwe kuhadiwe kanti enye isuselwa kusoftware.

Iwashi lesikhathi sangempela (RTC)

Inikwa amandla yibhethri futhi isebenza ngisho nalapho ikhompuyutha icishiwe. Sisho iwashi ngomqondo obanzi njengoba lingenazo izinkinobho, izinaliti noma izinombolo eziholayo. Kuyisekethi ehlanganisiwe eyingxenye yebhodi lomama futhi inesibopho sokusebenzisa iwashi lesistimu. Leso sifunda sine-crystal oscillator esekelwe ku-piezoelectric crystal.. Ikristalu ngayinye inesakhiwo se-crystalline esakhiwe iphethini evamile nephindaphindayo yama-athomu. Ngokusebenzisa insimu nge-crystal, isakhiwo sayo se-crystalline sihlanekezelwe futhi, ngokuqeda insimu, sibuyela esimweni sokuqala, ngaleyo ndlela sikhiqize isignali kagesi ngemvamisa enembile kakhulu.

iwashi lesistimu

Iwashi lesistimu lisekelwe olwazini lwewashi lesikhathi sangempela kodwa Umuntu ophethe ukuyiphatha uyinyoni yesistimu yokusebenza. Umsebenzi wayo ukulungisa, ukuhlela, nokuvumelanisa imisebenzi, izinqubo, neziphazamiso.

Akulona iwashi ngesitayela sezinhlelo zokusebenza esizibona kuselula noma, ngoba alibonisi amahora noma limele ukuhamba kwesikhathi ngezinombolo.  Ekwenzayo ukuqopha ukudlula kwemizuzwana nama-microsecond ngokukhipha amasignali edijithali.

Inkinga okufanele ixazululwe ukuntuleka kokuvumelanisa phakathi kwawo womabili amawashi (asebenzisa izindlela ezihlukene zokulinganisa isikhathi) namanye kanye nangesikhathi sangempela. Kwalokhu, uma ikhompuyutha iqala, iwashi lesistimu lifunda isikhathi kusukela ewashini lesikhathi sangempela futhi lisebenzisa ifomula yokulungisa. Bese, uma ikhompuyutha ixhumeke ku-inthanethi, inquma isikhathi sangempela futhi ivumelanise iwashi lesistimu ukuze libonise ukuhamba kwesikhathi ngendlela efanele.

Uyoqaphela kumakhompyutha amadala ukuthi, uma kungekho uxhumano lwe-inthanethi, isikhathi, esikhundleni sangempela, imizuzu embalwa nje ngemva kwesikhathi oyicishile. Lokho kuxazululwa ngokushintsha ibhethri elinika amandla iwashi lesikhathi sangempela.

Kumakhompyutha esimanje kungenzeka ukuthi uhlelo lokusebenza ziba iwashi lesikhathi sangempela bese ubhekisa ngqo kuseva yesikhathi senethiwekhi.