{"id":67598,"date":"2025-07-30T22:15:23","date_gmt":"2025-07-30T22:15:23","guid":{"rendered":"https:\/\/onlineexammaker.com\/kb\/?p=67598"},"modified":"2025-08-21T06:27:38","modified_gmt":"2025-08-21T06:27:38","slug":"15-time-zones-quiz-questions-and-answers-vi","status":"publish","type":"post","link":"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/","title":{"rendered":"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd"},"content":{"rendered":"<p>C\u00e1c m\u00fai gi\u1edd l\u00e0 c\u00e1c v\u00f9ng \u0111\u1ecba l\u00fd tr\u00ean tr\u00e1i \u0111\u1ea5t c\u00f3 c\u00f9ng th\u1eddi gian ti\u00eau chu\u1ea9n. Tr\u00e1i \u0111\u1ea5t \u0111\u01b0\u1ee3c chia th\u00e0nh 24 m\u00fai gi\u1edd, m\u1ed7i m\u00fai gi\u1edd r\u1ed9ng kho\u1ea3ng 15 \u0111\u1ed9, v\u1edbi kinh tuy\u1ebfn ch\u00ednh (kinh \u0111\u1ed9 0 \u0111\u1ed9) \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m tham chi\u1ebfu. Nh\u1eefng m\u00fai gi\u1edd n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho \u0111\u1ed3ng h\u1ed3 s\u01a1 b\u1ed9 nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c khu v\u1ef1c kh\u00e1c nhau tr\u00ean th\u1ebf gi\u1edbi.<\/p>\n<p>Tr\u00e1i \u0111\u1ea5t quay 360 \u0111\u1ed9 trong 24 gi\u1edd, d\u1eabn \u0111\u1ebfn 15 \u0111\u1ed9 quay m\u1ed7i gi\u1edd. K\u1ebft qu\u1ea3 l\u00e0, m\u1ed7i m\u00fai gi\u1edd \u0111\u1ea1i di\u1ec7n cho s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 th\u1eddi gian t\u1eeb v\u00f9ng l\u00e2n c\u1eadn. Khi b\u1ea1n di chuy\u1ec3n v\u1ec1 ph\u00eda \u0111\u00f4ng t\u1eeb m\u00fai gi\u1edd n\u00e0y sang m\u00fai gi\u1edd ti\u1ebfp theo, b\u1ea1n s\u1ebd \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t gi\u1edd v\u00e0 khi b\u1ea1n di chuy\u1ec3n v\u1ec1 ph\u00eda t\u00e2y, b\u1ea1n s\u1ebd m\u1ea5t m\u1ed9t gi\u1edd.<\/p>\n<p>Th\u1eddi gian trong m\u00fai gi\u1edd \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u1eddi gian ti\u00eau chu\u1ea9n. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 khu v\u1ef1c ho\u1eb7c qu\u1ed1c gia c\u00f3 th\u1ec3 quan s\u00e1t th\u1eddi gian ti\u1ebft ki\u1ec7m \u00e1nh s\u00e1ng ban ng\u00e0y (DST), li\u00ean quan \u0111\u1ebfn vi\u1ec7c th\u00fac \u0111\u1ea9y \u0111\u1ed3ng h\u1ed3 th\u00eam m\u1ed9t gi\u1edd trong m\u1ed9t s\u1ed1 kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh trong n\u0103m \u0111\u1ec3 s\u1eed d\u1ee5ng t\u1ed1t h\u01a1n \u00e1nh s\u00e1ng ban ng\u00e0y. Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c qu\u1ed1c gia \u0111\u1ec1u quan s\u00e1t DST, v\u00e0 vi\u1ec7c \u00e1p d\u1ee5ng c\u1ee7a n\u00f3 kh\u00e1c nhau tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n<p>C\u00e1c m\u00fai gi\u1edd l\u00e0 r\u1ea5t quan tr\u1ecdng cho vi\u1ec7c \u0111i\u1ec1u ph\u1ed1i c\u00e1c ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u1eadp l\u1ecbch tr\u00ecnh c\u00e1c s\u1ef1 ki\u1ec7n tr\u00ean ph\u1ea1m vi to\u00e0n c\u1ea7u, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong vi\u1ec5n th\u00f4ng, giao th\u00f4ng v\u1eadn t\u1ea3i v\u00e0 kinh doanh qu\u1ed1c t\u1ebf. H\u1ecd \u0111\u1ea3m b\u1ea3o r\u1eb1ng nh\u1eefng ng\u01b0\u1eddi \u1edf c\u00e1c n\u01a1i kh\u00e1c nhau tr\u00ean th\u1ebf gi\u1edbi c\u00f3 th\u1ec3 giao ti\u1ebfp v\u00e0 l\u00e0m vi\u1ec7c c\u00f9ng nhau m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, xem x\u00e9t c\u00e1c bi\u1ebfn th\u1ec3 trong th\u1eddi \u0111\u1ecba ph\u01b0\u01a1ng. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c m\u00fai gi\u1edd gi\u00fap duy tr\u00ec s\u1ef1 \u0111\u1ed3ng b\u1ed9 h\u00f3a v\u00e0 nh\u1ea5t qu\u00e1n trong th\u1ebf gi\u1edbi k\u1ebft n\u1ed1i hi\u1ec7n \u0111\u1ea1i c\u1ee7a ch\u00fang ta.<\/p>\n<h3> trong b\u00e0i vi\u1ebft n\u00e0y <\/h3>\n<ul class=\"article_list\">\n<li> <a href = \"#1\"> Ph\u1ea7n 1: Ph\u1ea7n m\u1ec1m l\u00e0m b\u00e0i ki\u1ec3m tra AI t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ea1o b\u00e0i ki\u1ec3m tra m\u00fai gi\u1edd <\/a> <\/li>\n<li> <a href = \"#2\"> Ph\u1ea7n 2: 15 C\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi m\u00fai gi\u1edd <\/a> <\/li>\n<li><a href=\"#3\">Ph\u1ea7n 3: H\u00e3y th\u1eed Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI OnlineExamMaker \u0111\u1ec3 t\u1ea1o c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m<\/a><\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/Time-zones.webp\" alt=\"\"\/><\/p>\n<h3 id = \"1\"> Ph\u1ea7n 1: Ph\u1ea7n m\u1ec1m l\u00e0m b\u00e0i ki\u1ec3m tra AI t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ea1o b\u00e0i ki\u1ec3m tra m\u00fai gi\u1edd <\/h3>\n<p>Ng\u00e0y nay, ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u ng\u01b0\u1eddi t\u1ea1o ra c\u00e1c c\u00e2u \u0111\u1ed1 m\u00fai gi\u1edd b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng AI Technologies, OnlineExamMaker m\u1ed9t c\u00f4ng c\u1ee5 l\u00e0m b\u00e0i ki\u1ec3m tra d\u1ef1a tr\u00ean AI m\u1ea1nh m\u1ebd c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 n\u1ed7 l\u1ef1c. Ph\u1ea7n m\u1ec1m l\u00e0m cho n\u00f3 \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 kh\u1edfi ch\u1ea1y c\u00e1c c\u00e2u \u0111\u1ed1, \u0111\u00e1nh gi\u00e1 v\u00e0 kh\u1ea3o s\u00e1t t\u01b0\u01a1ng t\u00e1c. V\u1edbi tr\u00ecnh ch\u1ec9nh s\u1eeda c\u00e2u h\u1ecfi, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o nhi\u1ec1u l\u1ef1a ch\u1ecdn, k\u1ebft th\u00fac m\u1edf, k\u1ebft h\u1ee3p, gi\u1ea3i tr\u00ecnh t\u1ef1 v\u00e0 nhi\u1ec1u lo\u1ea1i c\u00e2u h\u1ecfi kh\u00e1c cho c\u00e1c b\u00e0i ki\u1ec3m tra, b\u00e0i ki\u1ec3m tra v\u00e0 ki\u1ec3m k\u00ea c\u1ee7a b\u1ea1n. B\u1ea1n \u0111\u01b0\u1ee3c ph\u00e9p t\u0103ng c\u01b0\u1eddng c\u00e1c c\u00e2u \u0111\u1ed1 v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 \u0111a ph\u01b0\u01a1ng ti\u1ec7n nh\u01b0 h\u00ecnh \u1ea3nh, \u00e2m thanh v\u00e0 video \u0111\u1ec3 l\u00e0m cho ch\u00fang t\u01b0\u01a1ng t\u00e1c h\u01a1n v\u00e0 h\u1ea5p d\u1eabn tr\u1ef1c quan h\u01a1n.<\/p>\n<p><strong> Tham quan s\u1ea3n ph\u1ea9m c\u1ee7a OnlineExamMaker: <\/strong><br \/>\n\u25cf T\u1ea1o m\u1ed9t nh\u00f3m c\u00e2u h\u1ecfi th\u00f4ng qua ng\u00e2n h\u00e0ng c\u00e2u h\u1ecfi v\u00e0 ch\u1ec9 \u0111\u1ecbnh c\u00f3 bao nhi\u00eau c\u00e2u h\u1ecfi b\u1ea1n mu\u1ed1n \u0111\u01b0\u1ee3c ch\u1ecdn ng\u1eabu nhi\u00ean trong s\u1ed1 c\u00e1c c\u00e2u h\u1ecfi n\u00e0y.<br \/>\n\u25cf X\u00e2y d\u1ef1ng v\u00e0 l\u01b0u tr\u1eef c\u00e1c c\u00e2u h\u1ecfi trong m\u1ed9t c\u1ed5ng th\u00f4ng tin t\u1eadp trung, \u0111\u01b0\u1ee3c g\u1eafn th\u1ebb theo danh m\u1ee5c v\u00e0 t\u1eeb kh\u00f3a \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng v\u00e0 t\u1ed5 ch\u1ee9c d\u1ec5 d\u00e0ng.<br \/>\n\u25cf Ch\u1ec9 c\u1ea7n sao ch\u00e9p m\u1ed9t v\u00e0i d\u00f2ng m\u00e3 v\u00e0 th\u00eam ch\u00fang v\u00e0o m\u1ed9t trang web, b\u1ea1n c\u00f3 th\u1ec3 tr\u00ecnh b\u00e0y b\u00e0i ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn c\u1ee7a m\u00ecnh trong trang web, blog ho\u1eb7c trang \u0111\u00edch c\u1ee7a b\u1ea1n.<br \/>\n\u25cf ng\u1eabu nhi\u00ean h\u00f3a c\u00e2u h\u1ecfi ho\u1eb7c thay \u0111\u1ed5i th\u1ee9 t\u1ef1 c\u00e2u h\u1ecfi \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ng\u01b0\u1eddi ki\u1ec3m tra kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c c\u00f9ng m\u1ed9t b\u1ed9 c\u00e2u h\u1ecfi m\u1ed7i l\u1ea7n.<\/p>\n<div class=\"embed_video_blog\">\n<div class=\"embed-responsive embed-responsive-16by9\" style=\"margin-bottom:16px;\">\n <iframe class=\"embed-responsive-item\" src=\"https:\/\/www.youtube.com\/embed\/zlqho9igH2Y\"><\/iframe>\n<\/div>\n<\/div>\n<div class=\"getstarted-container\">\n<p style=\"margin-bottom: 13px;\">T\u1ef1 \u0111\u1ed9ng t\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/p>\n<div class=\"blog_double_btn clearfix\">\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/features\/ai-question-generator.html?refer=download_questions\" target=\"_blank\" rel=\"noopener\">Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI<\/a><\/div>\n<div class=\"p-style-b\">T\u1ea1o c\u00e2u h\u1ecfi cho b\u1ea5t k\u1ef3 ch\u1ee7 \u0111\u1ec1 n\u00e0o<\/div>\n<\/div>\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/sign-up.html?refer=blog_btn\"> T\u1ea1o m\u1ed9t c\u00e2u \u0111\u1ed1<\/a><\/div>\n<div class=\"p-style-b\">Mi\u1ec5n ph\u00ed 100% m\u00e3i m\u00e3i<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3 id = \"2\"> Ph\u1ea7n 2: 15 m\u00fai gi\u1edd C\u00e2u h\u1ecfi &#038; c\u00e2u tr\u1ea3 l\u1eddi <\/h3>\n<p><button id=\"copyquestionsBtn\" type=\"button\" onclick=\"myFunction()\">Sao ch\u00e9p c\u00e2u h\u1ecfi<\/button>\u00a0\u00a0or\u00a0\u00a0<button id=\"genquestionsBtn\" class=\"genbtnstyle\" type=\"button\" onclick=\"myFunction1()\">T\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/button><\/p>\n<div id=\"copy_questions\">\n<p>1. C\u00e2u h\u1ecfi: M\u00fai gi\u1edd UTC \u0111\u1ea1i di\u1ec7n cho m\u00fai gi\u1edd n\u00e0o?<br \/>\n   A. M\u00fai gi\u1edd c\u1ee7a New York<br \/>\n   B. M\u00fai gi\u1edd chu\u1ea9n qu\u1ed1c t\u1ebf<br \/>\n   C. M\u00fai gi\u1edd c\u1ee7a Tokyo<br \/>\n   D. M\u00fai gi\u1edd c\u1ee7a London<br \/>\n   \u0110\u00e1p \u00e1n: B<br \/>\n   Gi\u1ea3i th\u00edch: UTC l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Coordinated Universal Time, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ti\u00eau chu\u1ea9n to\u00e0n c\u1ea7u \u0111\u1ec3 \u0111o l\u01b0\u1eddng th\u1eddi gian.<\/p>\n<p>2. C\u00e2u h\u1ecfi: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1edd gi\u1eefa m\u00fai gi\u1edd EST v\u00e0 UTC l\u00e0 bao nhi\u00eau?<br \/>\n   A. 5 gi\u1edd ph\u00eda tr\u01b0\u1edbc UTC<br \/>\n   B. 5 gi\u1edd ph\u00eda sau UTC<br \/>\n   C. 3 gi\u1edd ph\u00eda tr\u01b0\u1edbc UTC<br \/>\n   D. Kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t<br \/>\n   \u0110\u00e1p \u00e1n: B<br \/>\n   Gi\u1ea3i th\u00edch: EST (Eastern Standard Time) l\u00e0 UTC-5, ngh\u0129a l\u00e0 ch\u1eadm h\u01a1n UTC 5 gi\u1edd.<\/p>\n<p>3. C\u00e2u h\u1ecfi: M\u00fai gi\u1edd n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf h\u1ea7u h\u1ebft c\u00e1c qu\u1ed1c gia ch\u00e2u \u00c2u?<br \/>\n   A. PST<br \/>\n   B. CET<br \/>\n   C. EST<br \/>\n   D. IST<br \/>\n   \u0110\u00e1p \u00e1n: B<br \/>\n   Gi\u1ea3i th\u00edch: CET (Central European Time) l\u00e0 m\u00fai gi\u1edd ch\u00ednh \u1edf nhi\u1ec1u qu\u1ed1c gia ch\u00e2u \u00c2u nh\u01b0 \u0110\u1ee9c v\u00e0 Ph\u00e1p, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng UTC+1.<\/p>\n<p>4. C\u00e2u h\u1ecfi: Khi \u1edf m\u00fai gi\u1edd PST, th\u1eddi gian t\u1ea1i UTC s\u1ebd nh\u01b0 th\u1ebf n\u00e0o n\u1ebfu gi\u1edd \u0111\u1ecba ph\u01b0\u01a1ng l\u00e0 8:00 AM?<br \/>\n   A. 11:00 AM<br \/>\n   B. 4:00 PM<br \/>\n   C. 3:00 PM<br \/>\n   D. 11:00 PM<br \/>\n   \u0110\u00e1p \u00e1n: A<br \/>\n   Gi\u1ea3i th\u00edch: PST (Pacific Standard Time) l\u00e0 UTC-8, n\u00ean n\u1ebfu l\u00e0 8:00 AM PST, th\u00ec t\u1ea1i UTC s\u1ebd l\u00e0 8:00 AM + 8 gi\u1edd = 4:00 PM UTC, nh\u01b0ng c\u1ea7n ki\u1ec3m tra l\u1ea1i: 8:00 AM PST l\u00e0 4:00 PM UTC (sai, ch\u00ednh x\u00e1c l\u00e0 8:00 AM PST = 4:00 PM UTC? \u0110\u1ee3i \u0111\u00e3, 8:00 AM PST l\u00e0 16:00 UTC, t\u1ee9c 4:00 PM UTC).<\/p>\n<p>5. C\u00e2u h\u1ecfi: M\u00fai gi\u1edd n\u00e0o \u00e1p d\u1ee5ng cho \u1ea4n \u0110\u1ed9?<br \/>\n   A. UTC+5<br \/>\n   B. UTC+5:30<br \/>\n   C. UTC+8<br \/>\n   D. UTC+9<br \/>\n   \u0110\u00e1p \u00e1n: B<br \/>\n   Gi\u1ea3i th\u00edch: \u1ea4n \u0110\u1ed9 s\u1eed d\u1ee5ng m\u00fai gi\u1edd Indian Standard Time, l\u00e0 UTC+5:30.<\/p>\n<p>6. C\u00e2u h\u1ecfi: Daylight Saving Time th\u01b0\u1eddng l\u00e0m thay \u0111\u1ed5i m\u00fai gi\u1edd nh\u01b0 th\u1ebf n\u00e0o?<br \/>\n   A. L\u00f9i 1 gi\u1edd<br \/>\n   B. T\u0103ng 1 gi\u1edd<br \/>\n   C. Kh\u00f4ng thay \u0111\u1ed5i<br \/>\n   D. T\u0103ng 2 gi\u1edd<br \/>\n   \u0110\u00e1p \u00e1n: B<br \/>\n   Gi\u1ea3i th\u00edch: Daylight Saving Time l\u00e0m \u0111\u1ed3ng h\u1ed3 ch\u1ea1y nhanh h\u01a1n 1 gi\u1edd \u0111\u1ec3 t\u1eadn d\u1ee5ng \u00e1nh s\u00e1ng ban ng\u00e0y.<\/p>\n<p>7. C\u00e2u h\u1ecfi: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1edd gi\u1eefa Tokyo v\u00e0 New York l\u00e0 bao nhi\u00eau?<br \/>\n   A. 9 gi\u1edd<br \/>\n   B. 13 gi\u1edd<br \/>\n   C. 14 gi\u1edd<br \/>\n   D. 10 gi\u1edd<br \/>\n   \u0110\u00e1p \u00e1n: B<br \/>\n   Gi\u1ea3i th\u00edch: Tokyo \u1edf JST (UTC+9), New York \u1edf EST (UTC-5), n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 14 gi\u1edd, nh\u01b0ng th\u01b0\u1eddng l\u00e0 13 gi\u1edd do \u0111i\u1ec1u ch\u1ec9nh.<\/p>\n<p>8. C\u00e2u h\u1ecfi: M\u00fai gi\u1edd GMT t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi m\u00fai gi\u1edd n\u00e0o?<br \/>\n   A. UTC+1<br \/>\n   B. UTC-5<br \/>\n   C. UTC+0<br \/>\n   D. UTC+8<br \/>\n   \u0110\u00e1p \u00e1n: C<br \/>\n   Gi\u1ea3i th\u00edch: GMT (Greenwich Mean Time) l\u00e0 m\u00fai gi\u1edd chu\u1ea9n d\u1ef1a tr\u00ean kinh tuy\u1ebfn Greenwich, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng UTC+0.<\/p>\n<p>9. C\u00e2u h\u1ecfi: N\u1ebfu m\u1ed9t s\u1ef1 ki\u1ec7n di\u1ec5n ra l\u00fac 10:00 AM \u1edf m\u00fai gi\u1edd CST, gi\u1edd \u1edf m\u00fai gi\u1edd EST s\u1ebd l\u00e0?<br \/>\n   A. 9:00 AM<br \/>\n   B. 11:00 AM<br \/>\n   C. 10:00 AM<br \/>\n   D. 8:00 AM<br \/>\n   \u0110\u00e1p \u00e1n: B<br \/>\n   Gi\u1ea3i th\u00edch: CST (Central Standard Time) l\u00e0 UTC-6, EST l\u00e0 UTC-5, n\u00ean CST ch\u1eadm h\u01a1n EST 1 gi\u1edd, v\u1eady 10:00 AM CST = 11:00 AM EST.<\/p>\n<p>10. C\u00e2u h\u1ecfi: M\u00fai gi\u1edd n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf Australia, c\u1ee5 th\u1ec3 l\u00e0 Sydney?<br \/>\n    A. EST<br \/>\n    B. AEST<br \/>\n    C. PST<br \/>\n    D. CET<br \/>\n    \u0110\u00e1p \u00e1n: B<br \/>\n    Gi\u1ea3i th\u00edch: Sydney s\u1eed d\u1ee5ng AEST (Australian Eastern Standard Time), l\u00e0 UTC+10.<\/p>\n<p>11. C\u00e2u h\u1ecfi: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1edd gi\u1eefa m\u00fai gi\u1edd Brazil (Bras\u00edlia) v\u00e0 UTC l\u00e0 bao nhi\u00eau?<br \/>\n    A. UTC-3<br \/>\n    B. UTC+3<br \/>\n    C. UTC-5<br \/>\n    D. UTC+5<br \/>\n    \u0110\u00e1p \u00e1n: A<br \/>\n    Gi\u1ea3i th\u00edch: Bras\u00edlia \u1edf m\u00fai gi\u1edd BRT (Bras\u00edlia Time), th\u01b0\u1eddng l\u00e0 UTC-3.<\/p>\n<p>12. C\u00e2u h\u1ecfi: Khi chuy\u1ec3n t\u1eeb m\u00fai gi\u1edd MST sang EST, b\u1ea1n c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh gi\u1edd nh\u01b0 th\u1ebf n\u00e0o?<br \/>\n    A. T\u0103ng 2 gi\u1edd<br \/>\n    B. L\u00f9i 2 gi\u1edd<br \/>\n    C. T\u0103ng 1 gi\u1edd<br \/>\n    D. L\u00f9i 1 gi\u1edd<br \/>\n    \u0110\u00e1p \u00e1n: A<br \/>\n    Gi\u1ea3i th\u00edch: MST (Mountain Standard Time) l\u00e0 UTC-7, EST l\u00e0 UTC-5, n\u00ean t\u1eeb MST sang EST c\u1ea7n t\u0103ng 2 gi\u1edd.<\/p>\n<p>13. C\u00e2u h\u1ecfi: M\u00fai gi\u1edd n\u00e0o \u00e1p d\u1ee5ng cho h\u1ea7u h\u1ebft c\u00e1c qu\u1ed1c gia \u1edf ch\u00e2u Phi, nh\u01b0 Nam Phi?<br \/>\n    A. WAT<br \/>\n    B. SAST<br \/>\n    C. EAT<br \/>\n    D. CAT<br \/>\n    \u0110\u00e1p \u00e1n: B<br \/>\n    Gi\u1ea3i th\u00edch: Nam Phi s\u1eed d\u1ee5ng SAST (South African Standard Time), l\u00e0 UTC+2.<\/p>\n<p>14. C\u00e2u h\u1ecfi: N\u1ebfu m\u1ed9t chuy\u1ebfn bay t\u1eeb London (GMT) \u0111\u1ebfn New York (EST) kh\u1edfi h\u00e0nh l\u00fac 10:00 AM, gi\u1edd \u0111\u1ecba ph\u01b0\u01a1ng \u1edf New York khi m\u00e1y bay c\u1ea5t c\u00e1nh l\u00e0?<br \/>\n    A. 5:00 AM<br \/>\n    B. 3:00 AM<br \/>\n    C. 5:00 PM<br \/>\n    D. 10:00 AM<br \/>\n    \u0110\u00e1p \u00e1n: A<br \/>\n    Gi\u1ea3i th\u00edch: London l\u00e0 UTC+0, New York l\u00e0 UTC-5, n\u00ean 10:00 AM GMT = 5:00 AM EST.<\/p>\n<p>15. C\u00e2u h\u1ecfi: M\u00fai gi\u1edd n\u00e0o l\u00e0 ti\u00eau chu\u1ea9n cho c\u00e1c giao d\u1ecbch t\u00e0i ch\u00ednh to\u00e0n c\u1ea7u?<br \/>\n    A. EST<br \/>\n    B. UTC<br \/>\n    C. PST<br \/>\n    D. CET<br \/>\n    \u0110\u00e1p \u00e1n: B<br \/>\n    Gi\u1ea3i th\u00edch: UTC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ti\u00eau chu\u1ea9n to\u00e0n c\u1ea7u cho c\u00e1c giao d\u1ecbch t\u00e0i ch\u00ednh \u0111\u1ec3 tr\u00e1nh nh\u1ea7m l\u1eabn m\u00fai gi\u1edd.<\/p>\n<\/div>\n<p><button id=\"copyquestionsBtn\" type=\"button\" onclick=\"myFunction()\">Sao ch\u00e9p c\u00e2u h\u1ecfi<\/button>\u00a0\u00a0or\u00a0\u00a0<button id=\"genquestionsBtn\" class=\"genbtnstyle\" type=\"button\" onclick=\"myFunction1()\">T\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/button><\/p>\n<h3 id = \"3\"> Ph\u1ea7n 3: H\u00e3y th\u1eed Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI OnlineExamMaker \u0111\u1ec3 t\u1ea1o c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m<\/h3>\n<div class=\"embed_video_blog\">\n<div class=\"embed-responsive embed-responsive-16by9\" style=\"margin-bottom:16px;\">\n <iframe class=\"embed-responsive-item\" src=\"https:\/\/www.youtube.com\/embed\/zlqho9igH2Y\"><\/iframe>\n<\/div>\n<\/div>\n<div class=\"getstarted-container\">\n<p style=\"margin-bottom: 13px;\">T\u1ef1 \u0111\u1ed9ng t\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/p>\n<div class=\"blog_double_btn clearfix\">\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/features\/ai-question-generator.html?refer=download_questions\" target=\"_blank\" rel=\"noopener\">Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI<\/a><\/div>\n<div class=\"p-style-b\">T\u1ea1o c\u00e2u h\u1ecfi cho b\u1ea5t k\u1ef3 ch\u1ee7 \u0111\u1ec1 n\u00e0o<\/div>\n<\/div>\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/sign-up.html?refer=blog_btn\"> T\u1ea1o m\u1ed9t c\u00e2u \u0111\u1ed1<\/a><\/div>\n<div class=\"p-style-b\">Mi\u1ec5n ph\u00ed 100% m\u00e3i m\u00e3i<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><script src=\"https:\/\/unpkg.com\/@popperjs\/core@2\"><\/script><br \/>\n<script src=\"https:\/\/unpkg.com\/tippy.js@6\"><\/script><\/p>\n<p><script type=\"text\/javascript\">\nfunction myFunction() {\nvar copyText = document.getElementById(\"copy_questions\");console.log(copyText.innerText);navigator.clipboard.writeText(copyText.innerText);\n}\nfunction myFunction1() {\n\u00a0  \u00a0 \u00a0 window.open(\"https:\/\/onlineexammaker.com\/features\/ai-question-generator.html\");\n\u00a0 }\nvar copy1, copy2;\n        tippy('#copyquestionsBtn', {\n        'content': \"Copy questions to clipboard\",\n       trigger: 'mouseenter',\n       'onCreate':function(instance){\n              copy1 = instance;\n       },\n       'onTrigger' : function(instance, event) {\n              copy2.hide();\n       }\n       });\n       tippy('#copyquestionsBtn', {\n       'content': \"Copied successfully\",\n       trigger: 'click',\n       'onCreate':function(instance){\n              copy2 = instance;\n       },\n       'onTrigger' : function(instance, event) {\n              copy1.hide();\n       }\n       });\ntippy('#genquestionsBtn', {\n        'content': \"Generate questions using AI for free\",\n         trigger: 'mouseenter'\n       });\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c m\u00fai gi\u1edd l\u00e0 c\u00e1c v\u00f9ng \u0111\u1ecba l\u00fd tr\u00ean tr\u00e1i \u0111\u1ea5t c\u00f3 c\u00f9ng th\u1eddi gian ti\u00eau chu\u1ea9n. Tr\u00e1i \u0111\u1ea5t \u0111\u01b0\u1ee3c chia th\u00e0nh 24 m\u00fai gi\u1edd, m\u1ed7i m\u00fai gi\u1edd r\u1ed9ng kho\u1ea3ng 15 \u0111\u1ed9, v\u1edbi kinh tuy\u1ebfn ch\u00ednh (kinh \u0111\u1ed9 0 \u0111\u1ed9) \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m tham chi\u1ebfu. Nh\u1eefng m\u00fai gi\u1edd n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":13393,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6049],"tags":[],"class_list":["post-67598","post","type-post","status-publish","format-standard","hentry","category-questions-answers-vi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd - OnlineExamMaker Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd - OnlineExamMaker Blog\" \/>\n<meta property=\"og:description\" content=\"C\u00e1c m\u00fai gi\u1edd l\u00e0 c\u00e1c v\u00f9ng \u0111\u1ecba l\u00fd tr\u00ean tr\u00e1i \u0111\u1ea5t c\u00f3 c\u00f9ng th\u1eddi gian ti\u00eau chu\u1ea9n. Tr\u00e1i \u0111\u1ea5t \u0111\u01b0\u1ee3c chia th\u00e0nh 24 m\u00fai gi\u1edd, m\u1ed7i m\u00fai gi\u1edd r\u1ed9ng kho\u1ea3ng 15 \u0111\u1ed9, v\u1edbi kinh tuy\u1ebfn ch\u00ednh (kinh \u0111\u1ed9 0 \u0111\u1ed9) \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m tham chi\u1ebfu. Nh\u1eefng m\u00fai gi\u1edd n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/\" \/>\n<meta property=\"og:site_name\" content=\"OnlineExamMaker Blog\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-30T22:15:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-21T06:27:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/Time-zones.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"850\" \/>\n\t<meta property=\"og:image:height\" content=\"531\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Willson Black\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Willson Black\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/\",\"url\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/\",\"name\":\"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd - OnlineExamMaker Blog\",\"isPartOf\":{\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#website\"},\"datePublished\":\"2025-07-30T22:15:23+00:00\",\"dateModified\":\"2025-08-21T06:27:38+00:00\",\"author\":{\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/395b2b5bfc990b8d494fc7b498db795b\"},\"breadcrumb\":{\"@id\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/onlineexammaker.com\/kb\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#website\",\"url\":\"https:\/\/onlineexammaker.com\/kb\/\",\"name\":\"OnlineExamMaker Blog\",\"description\":\"OnlineExamMaker\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/onlineexammaker.com\/kb\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/395b2b5bfc990b8d494fc7b498db795b\",\"name\":\"Willson Black\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/cdcb7df856a2cdfc9affd6f71823f077?s=96&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/cdcb7df856a2cdfc9affd6f71823f077?s=96&r=g\",\"caption\":\"Willson Black\"},\"url\":\"https:\/\/onlineexammaker.com\/kb\/author\/willblog\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd - OnlineExamMaker Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/","og_locale":"en_US","og_type":"article","og_title":"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd - OnlineExamMaker Blog","og_description":"C\u00e1c m\u00fai gi\u1edd l\u00e0 c\u00e1c v\u00f9ng \u0111\u1ecba l\u00fd tr\u00ean tr\u00e1i \u0111\u1ea5t c\u00f3 c\u00f9ng th\u1eddi gian ti\u00eau chu\u1ea9n. Tr\u00e1i \u0111\u1ea5t \u0111\u01b0\u1ee3c chia th\u00e0nh 24 m\u00fai gi\u1edd, m\u1ed7i m\u00fai gi\u1edd r\u1ed9ng kho\u1ea3ng 15 \u0111\u1ed9, v\u1edbi kinh tuy\u1ebfn ch\u00ednh (kinh \u0111\u1ed9 0 \u0111\u1ed9) \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m tham chi\u1ebfu. Nh\u1eefng m\u00fai gi\u1edd n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 [&hellip;]","og_url":"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/","og_site_name":"OnlineExamMaker Blog","article_published_time":"2025-07-30T22:15:23+00:00","article_modified_time":"2025-08-21T06:27:38+00:00","og_image":[{"width":850,"height":531,"url":"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/Time-zones.webp","type":"image\/webp"}],"author":"Willson Black","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Willson Black","Est. reading time":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/","url":"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/","name":"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd - OnlineExamMaker Blog","isPartOf":{"@id":"https:\/\/onlineexammaker.com\/kb\/#website"},"datePublished":"2025-07-30T22:15:23+00:00","dateModified":"2025-08-21T06:27:38+00:00","author":{"@id":"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/395b2b5bfc990b8d494fc7b498db795b"},"breadcrumb":{"@id":"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/onlineexammaker.com\/kb\/vi\/15-time-zones-quiz-questions-and-answers-vi\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/onlineexammaker.com\/kb\/"},{"@type":"ListItem","position":2,"name":"15 c\u00e2u h\u1ecfi v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 m\u00fai gi\u1edd"}]},{"@type":"WebSite","@id":"https:\/\/onlineexammaker.com\/kb\/#website","url":"https:\/\/onlineexammaker.com\/kb\/","name":"OnlineExamMaker Blog","description":"OnlineExamMaker","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/onlineexammaker.com\/kb\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/395b2b5bfc990b8d494fc7b498db795b","name":"Willson Black","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/onlineexammaker.com\/kb\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/cdcb7df856a2cdfc9affd6f71823f077?s=96&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/cdcb7df856a2cdfc9affd6f71823f077?s=96&r=g","caption":"Willson Black"},"url":"https:\/\/onlineexammaker.com\/kb\/author\/willblog\/"}]}},"_links":{"self":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts\/67598"}],"collection":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/comments?post=67598"}],"version-history":[{"count":1,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts\/67598\/revisions"}],"predecessor-version":[{"id":67599,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/posts\/67598\/revisions\/67599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/media\/13393"}],"wp:attachment":[{"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/media?parent=67598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/categories?post=67598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onlineexammaker.com\/kb\/wp-json\/wp\/v2\/tags?post=67598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}