PDT vs PST
Qhov txawv ntawm PDT thiab PST tsuas yog ib teev. Txawm li cas los xij, txhawm rau kom nkag siab tias qhov sib txawv ntawm ib teev tshwm sim li cas thiab qhov sib txawv ntawm ib teev twg txhais tau li cas, peb yuav tsum nkag siab tias txhua lo lus hais txog dab tsi. PDT sawv rau Pacific Daylight Time thiab PST sawv rau Pacific Standard Time. PDT thiab PST yog siv nyob rau hauv thaj tsam Pacific Time (PT), uas tau pom nyob rau hauv ib feem ntawm North American sab av loj. Ntau qhov chaw ntawm North American sab av loj tuaj nyob rau hauv lub sijhawm sib txawv raws li nws yog lub teb chaws loj. Yog li, nyob rau hauv Pacific Time zone tsuas yog ob peb lub xeev tuaj. PDT thiab PST tau qhia los ntawm kev xa mus rau GMT lossis UTC. Hauv tsab xov xwm no, peb nthuav qhia cov ntaub ntawv ntxiv txog PST thiab PDT, nrog rau cov chaw uas siv cov sijhawm no.
PST yog dab tsi?
Pacific Time Zone tau pom nyob hauv North America thiab feem ntau hu ua Pacific Time lossis PT. Nws tseem hu ua North American Pacific Standard Time (NAPST). Lub sijhawm no yog hu ua Pacific Standard Time (PST) nyob rau lub caij ntuj no, thaum lub sij hawm qauv raug soj ntsuam, thiab Pacific Daylight Time (PDT) nyob rau lub caij ntuj sov, thaum nruab hnub txuag lub sij hawm. Cov xeev hauv Asmeskas uas siv PST suav nrog California, Idaho, Nevada, Oregon, thiab Washington. Canadian cov xeev uas PST siv yog British Columbia thiab Yukon thiab Mexican xeev, Baja California Norte kuj siv PST.
Lub sijhawm qauv yog lub sijhawm tsis tu ncua uas yog ua ntej lossis rov qab ntawm GMT. Txij li thaj tsam Pacific Lub Sijhawm no yog nyob ntawm 120th meridian sab hnub poob ntawm Greenwich, lub sijhawm hauv zos suav los ntawm kev rho tawm 8 los ntawm GMT lossis UTC (UTC - 8). Qhov no yog lub sij hawm txheem. Ntawd yog, PST=UTC – 8 teev
PDT yog dab tsi?
Hnub kaj yog thaum cov moos txav ib teev mus rau pem hauv ntej kom txuag sijhawm. Txhawm rau kom siv lub hnub ci siab tshaj plaws, cov kauj ruam no yog ua kom txav lub moos mus tom ntej. Qhov kev hloov kho no yog ua thaum lub caij ntuj sov. Cov moos rov qab los ntawm ib teev thaum lub caij nplooj zeeg. Yog li, PDT yog Pacific Daylight (Savings) Lub Sijhawm thaum peb tig peb lub moos mus tom ntej los ntawm ib teev. PST tau pom thaum peb tig rov qab peb lub moos los ntawm ib teev. Ntawd yog, PDT=UTC – 7 teev
Hnub Hnub Txuag Lub Sijhawm pib siv rau txhua xyoo nyob rau hnub Sunday thib ob ntawm Lub Peb Hlis thaum 2 teev sawv ntxov lub sijhawm hauv zos thiab txuas ntxiv mus txog lub Kaum Ib Hlis thaum nws rov qab pegged ib teev kom rov qab mus rau Lub Sijhawm Txheej Txheem.
PDT=UTC – 7 teev
PDT thiab PST yog dab tsi?
• PST sawv cev rau Pacific Standard Time thiab PDT sawv rau Pacific Hnub Teeb Sijhawm.
• PST tseem hu ua North American Pacific Standard Time (NAPST) thiab Pacific Time (PT). PDT tseem hu ua Pacific Daylight Saving Time (PDST).
• PST yog ib qho ntawm cov cheeb tsam lub sijhawm pom los ntawm North America. PDT yog qhov hloov pauv ntawm lub sijhawm no.
• PST thiab PDT tau pom los ntawm ntau lub xeev hauv Asmeskas, Canada, thiab Mexico.
• Lub hom phiaj ntawm PST yog qhia lub sijhawm siv rau GMT lossis UTC. Txawm li cas los xij, lub hom phiaj ntawm PDT yog txuag lub sijhawm nruab hnub nrig thaum lub caij ntuj sov.
• PST yog yim teev tom qab UTC. Yog li, PST yog UTC – 8. PDT yog xya teev tom qab UTC. Yog li, PDT yog UTC – 7. Yog li, qhov txawv ntawm PDT thiab PST yog ib teev.
• Cov xeev uas saib xyuas PST thiab PDT yog raws li hauv qab no. Tebchaws Asmeskas cov xeev uas ua raws PST thiab PDT yog California, Idaho, Nevada, Oregon, thiab Washington. Canadian cov xeev uas PDT siv thaum lub caij ntuj sov thiab PST lub sijhawm so yog British Columbia thiab Yukon. Tom qab ntawd, lub xeev Mev, Baja California Norte kuj siv PST thiab PDT.
Images Courtesy: UTC – 7 via Wikicommons (Public Domain)
