Key Takeaways
- Ib qho thib ob, lub npe hu ua leap thib ob, los pab ua kom lub moos sib txuas nrog lub ntiaj teb kev sib hloov, tau ua rau muaj kev cuam tshuam loj hauv internet yav dhau los.
- Nyob hauv blog, Meta engineers tau ua ib rooj plaub rau kev txiav tawm qhov kev coj ua thaum hais txog lwm txoj hauv kev.
- Cov kws tshaj lij tau txais tos qhov kev txav no tab sis ceeb toom tias kev lag luam yuav tsum pom zoo rau kev hloov pauv, lossis lwm yam lawv yuav ua rau qhov teeb meem nyuaj ntxiv.
Meta txaus siab nrog ib qho kev tso dag thib ob ua rau muaj kev cuam tshuam loj hauv Is Taws Nem thiab tau los nrog txoj kev npaj ua kom tshem tawm qhov kev xyaum.
Paub tias yog leap thib ob, tus zuam ntxiv tau chalked nyob rau hauv 1972 raws li ib tug txhais tau tias kom moos nyob rau hauv sync nrog lub ntiaj teb tiag tiag kev sib hloov. Cov khoos phis tawj muaj lub sijhawm nyuaj zom cov leap thib ob thiab ua rau txhua yam teeb meem sim ua kom paub qhov tsis zoo, qee zaum cuam tshuam hauv internet thiab lwm yam kev sib txuas rau hauv kev tsis sib haum xeeb. Cov kws ua haujlwm ntawm Meta tsis ntev los no tau blogged txog lawv lub hom phiaj los tsim lub zog los txhawm rau txhawm rau dhia thib ob, sib cav tias nws ua rau muaj teeb meem ntau dua li nws daws.
"Lub sijhawm hauv computers ua rau muaj kev poob siab ntawm cov txheej txheem tseem ceeb, thiab yog li qhov tseeb yog qhov tseem ceeb," Patrick McFadin, Tus Lwm Thawj Coj ntawm Kev Tsim Kho Kev Sib Raug Zoo ntawm DataStax, hais rau Lifewire hauv email. "Hnub txuag, leap xyoo, thiab leap vib nas this tag nrho cov linearity ntawm lub sij hawm."
Dance of Time
Qhov xav tau rau lub leap thib ob tshwm sim vim lub ntiaj teb tus nqi ntawm kev sib tw yog me ntsis txawv. Txij li thaum xyoo 1982, muaj 27 leap vib nas this ntxiv rau lub ntiaj teb lub sijhawm ua haujlwm, Lub Sijhawm Sib Koom Tes (UTC), txhawm rau coj nws nrog lub sijhawm hnub ci.
Nyob rau hauv lawv cov ntawv tshaj tawm, Meta tau sib cav tias txhua qhov dhia thib ob yog qhov mob hnyav rau cov neeg uas tswj hwm cov khoom siv kho vajtse.
"Nws tsis yog ntau lub khoos phis tawj lawv tus kheej uas tsis nyiam leap vib nas this; tab sis, nws yog software peb sau rau lawv tsis tau npaj rau leaps," Jake Jervey, tus kws tshaj lij kev tsim kho vaj tsev laus ntawm Cob alt, piav qhia rau Lifewire hauv email. "Software engineers ua ob qho tib si tab sis, ua tsaug rau leap vib nas this, qhov kev xav tsis raug: lub sijhawm tsis tuaj yeem rov qab mus, thiab ob qhov xwm txheej tsis tuaj yeem tshwm sim ntawm lub sijhawm tib lub sijhawm."
Nws yog ob qhov kev xav no uas qhia txog qhov khoom siv thib ob tuaj yeem ua rau muaj kab mob loj hauv cov kab ke uas lub sijhawm thiab kev teem sijhawm muaj kev txhawj xeeb, taw qhia Jervey.
Meta piav txog lwm qhov ua tau nrog kev siv leap thib ob, uas tseem tsis tau tshwm sim tab sis tuaj yeem cuam tshuam sib npaug. Txij li lub ntiaj teb txoj kev hloov pauv hloov pauv hloov pauv, nws muaj feem ntau tias nws tuaj yeem nce nrawm ua rau cov neeg tsim khoom suav nrog qhov tsis zoo leap thib ob.
"Qhov cuam tshuam ntawm qhov tsis zoo leap thib ob yeej tsis tau sim ntawm qhov loj," hais Meta hauv lawv cov ntawv tshaj tawm, ntxiv, "nws tuaj yeem muaj kev cuam tshuam loj heev rau software vam khom sijhawm lossis teem sijhawm."
Txhua yam xav txog, McFadin tau hais tias qhov teeb meem nrog kev siv lub leap thib ob tuaj yeem nkag siab tias yog kev sib cav ntawm cov kws tshawb fawb thiab cov kws tshaj lij uas qhov tseeb ntawm kev tshawb fawb sib cav nrog kev ua haujlwm ntawm engineering.
Tsis muaj leej twg yuav pom yog tias peb tsis ua raws li lub vib nas this, tab sis txhua tus yuav pom yog tias peb ua yuam kev.
"Lub sijhawm dhau los lossis phem dua, cov nyiaj siv sijhawm ua ntej lub sijhawm tam sim no tuaj yeem tsim teeb meem tshwm sim tiag tiag hauv cov khoos phis tawj tsuas yog sim ua raws li cov lus qhia," said McFadin.
Txhob Nrog Lub Sijhawm
Nyob rau hauv lawv cov ntawv tshaj tawm, Meta tau sib cav tias thaum lub sijhawm leap thib ob yuav yog qhov kev daws teeb meem zoo hauv xyoo 1972 thaum nws ua rau ob lub zej zog kev tshawb fawb thiab kev lag luam hauv xov tooj zoo siab, hnub no, kev cia siab rau UTC yog qhov tsis zoo rau ob qho tib si digital. daim ntawv thov thiab cov kws tshawb fawb.
"Ntawm Meta, peb txhawb nqa kev lag luam kom tsis txhob muaj kev nthuav qhia yav tom ntej ntawm leap vib nas this thiab nyob rau theem tam sim no ntawm 27," sau tseg Meta hauv tus ncej. "Qhia tawm lub vib nas this tshiab yog qhov kev pheej hmoo uas ua rau muaj kev phom sij ntau dua li qhov zoo, thiab peb ntseeg tias nws yog lub sijhawm los qhia cov thev naus laus zis tshiab los hloov nws."
McFadin ntxiv tias cov kws ua haujlwm txhua qhov chaw muaj lub sijhawm tiag tiag thiab tuaj yeem lees paub tias kev kho mob hnyav dua li tus mob.
"Kev hloov pauv rau lub hauv paus-theem Cheebtsam zoo li lub sijhawm tiag tiag zoo li qee yam peb yuav tsum ua tau," McFadin hais. "Raws li kev lag luam, peb yeej tsis muaj peev xwm ua nws yam tsis tsim kev puas tsuaj."
Qhov xwm txheej ceeb toom Jervey ntawm qhov tsis zoo Y2K kab laum, thiab peb cov kws tshaj lij tau txais tos Meta qhov kev txav mus los lees tias nws txog lub sijhawm qhov teeb meem no tau daws. Txawm li cas los xij, zoo li McFadin, nws tau hais txog qhov tseem ceeb ntawm kev sib koom tes ntawm txhua tus neeg muaj feem cuam tshuam, lossis lwm yam kev sau software rau hnub thiab sijhawm tuav yuav dhau los ua qhov nyuaj rau cov neeg tsim khoom.
"Txhua lub tshuab peb tab tom tham txog yog tib neeg-nyeem tau cov ntaub ntawv, xws li ncua sij hawm ntawm kev sib raug zoo, "McFadin piav qhia. "Tsis muaj leej twg yuav pom yog tias peb tsis ua raws li lub vib nas this, tab sis txhua tus yuav pom yog tias peb ua yuam kev."
