{"id":87792,"date":"2025-06-01T06:54:16","date_gmt":"2025-06-01T06:54:16","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87792"},"modified":"2025-06-01T06:54:16","modified_gmt":"2025-06-01T06:54:16","slug":"if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/","title":{"rendered":"If it is 12.00 Noon in India, on which meridian will it be 7.00 am of"},"content":{"rendered":"<p>If it is 12.00 Noon in India, on which meridian will it be 7.00 am of the same day ?<\/p>\n<p>[amp_mcq option1=&#8221;7.5 degree E. Longitude&#8221; option2=&#8221;7.5 degree W. Longitude&#8221; option3=&#8221;75 degree E. Longitude&#8221; option4=&#8221;75 degree W. Longitude&#8221; correct=&#8221;option1&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC NDA-1 &#8211; 2021<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-1-2021.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-1-2021\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct answer is 7.5 degree E. Longitude.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nIndia&#8217;s standard time (IST) is based on the meridian 82.5 degrees East longitude. The time difference between two locations is directly proportional to the difference in their longitudes, with 1 hour corresponding to 15 degrees of longitude (360 degrees \/ 24 hours). If it is 12:00 Noon at 82.5 degrees E, and we need to find the longitude where it is 7:00 am on the same day, the time difference is 12:00 &#8211; 7:00 = 5 hours. Since the time is earlier, the location must be to the west of India. The longitude difference is 5 hours * 15 degrees\/hour = 75 degrees. Starting from 82.5 degrees East and moving 75 degrees West, we get the required longitude: 82.5 degrees E &#8211; 75 degrees = 7.5 degrees E.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nMoving eastwards adds time (later time), and moving westwards subtracts time (earlier time). The calculation confirms that a location at 7.5 degrees East longitude is 5 hours behind India&#8217;s standard time (at 82.5 degrees East).<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>If it is 12.00 Noon in India, on which meridian will it be 7.00 am of the same day ? [amp_mcq option1=&#8221;7.5 degree E. Longitude&#8221; option2=&#8221;7.5 degree W. Longitude&#8221; option3=&#8221;75 degree E. Longitude&#8221; option4=&#8221;75 degree W. Longitude&#8221; correct=&#8221;option1&#8243;] This question was previously asked in UPSC NDA-1 &#8211; 2021 Download PDFAttempt Online The correct answer is &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"If it is 12.00 Noon in India, on which meridian will it be 7.00 am of\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/#more-87792\">Detailed Solution<span class=\"screen-reader-text\">If it is 12.00 Noon in India, on which meridian will it be 7.00 am of<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1093],"tags":[1110,1359,1106],"class_list":["post-87792","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1110","tag-longitude","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>If it is 12.00 Noon in India, on which meridian will it be 7.00 am of<\/title>\n<meta name=\"description\" content=\"The correct answer is 7.5 degree E. Longitude. India&#039;s standard time (IST) is based on the meridian 82.5 degrees East longitude. The time difference between two locations is directly proportional to the difference in their longitudes, with 1 hour corresponding to 15 degrees of longitude (360 degrees \/ 24 hours). If it is 12:00 Noon at 82.5 degrees E, and we need to find the longitude where it is 7:00 am on the same day, the time difference is 12:00 - 7:00 = 5 hours. Since the time is earlier, the location must be to the west of India. The longitude difference is 5 hours * 15 degrees\/hour = 75 degrees. Starting from 82.5 degrees East and moving 75 degrees West, we get the required longitude: 82.5 degrees E - 75 degrees = 7.5 degrees E.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If it is 12.00 Noon in India, on which meridian will it be 7.00 am of\" \/>\n<meta property=\"og:description\" content=\"The correct answer is 7.5 degree E. Longitude. India&#039;s standard time (IST) is based on the meridian 82.5 degrees East longitude. The time difference between two locations is directly proportional to the difference in their longitudes, with 1 hour corresponding to 15 degrees of longitude (360 degrees \/ 24 hours). If it is 12:00 Noon at 82.5 degrees E, and we need to find the longitude where it is 7:00 am on the same day, the time difference is 12:00 - 7:00 = 5 hours. Since the time is earlier, the location must be to the west of India. The longitude difference is 5 hours * 15 degrees\/hour = 75 degrees. Starting from 82.5 degrees East and moving 75 degrees West, we get the required longitude: 82.5 degrees E - 75 degrees = 7.5 degrees E.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:54:16+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"If it is 12.00 Noon in India, on which meridian will it be 7.00 am of","description":"The correct answer is 7.5 degree E. Longitude. India's standard time (IST) is based on the meridian 82.5 degrees East longitude. The time difference between two locations is directly proportional to the difference in their longitudes, with 1 hour corresponding to 15 degrees of longitude (360 degrees \/ 24 hours). If it is 12:00 Noon at 82.5 degrees E, and we need to find the longitude where it is 7:00 am on the same day, the time difference is 12:00 - 7:00 = 5 hours. Since the time is earlier, the location must be to the west of India. The longitude difference is 5 hours * 15 degrees\/hour = 75 degrees. Starting from 82.5 degrees East and moving 75 degrees West, we get the required longitude: 82.5 degrees E - 75 degrees = 7.5 degrees E.","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:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/","og_locale":"en_US","og_type":"article","og_title":"If it is 12.00 Noon in India, on which meridian will it be 7.00 am of","og_description":"The correct answer is 7.5 degree E. Longitude. India's standard time (IST) is based on the meridian 82.5 degrees East longitude. The time difference between two locations is directly proportional to the difference in their longitudes, with 1 hour corresponding to 15 degrees of longitude (360 degrees \/ 24 hours). If it is 12:00 Noon at 82.5 degrees E, and we need to find the longitude where it is 7:00 am on the same day, the time difference is 12:00 - 7:00 = 5 hours. Since the time is earlier, the location must be to the west of India. The longitude difference is 5 hours * 15 degrees\/hour = 75 degrees. Starting from 82.5 degrees East and moving 75 degrees West, we get the required longitude: 82.5 degrees E - 75 degrees = 7.5 degrees E.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:54:16+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/","url":"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/","name":"If it is 12.00 Noon in India, on which meridian will it be 7.00 am of","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:54:16+00:00","dateModified":"2025-06-01T06:54:16+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is 7.5 degree E. Longitude. India's standard time (IST) is based on the meridian 82.5 degrees East longitude. The time difference between two locations is directly proportional to the difference in their longitudes, with 1 hour corresponding to 15 degrees of longitude (360 degrees \/ 24 hours). If it is 12:00 Noon at 82.5 degrees E, and we need to find the longitude where it is 7:00 am on the same day, the time difference is 12:00 - 7:00 = 5 hours. Since the time is earlier, the location must be to the west of India. The longitude difference is 5 hours * 15 degrees\/hour = 75 degrees. Starting from 82.5 degrees East and moving 75 degrees West, we get the required longitude: 82.5 degrees E - 75 degrees = 7.5 degrees E.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-it-is-12-00-noon-in-india-on-which-meridian-will-it-be-7-00-am-of\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-1\/"},{"@type":"ListItem","position":3,"name":"If it is 12.00 Noon in India, on which meridian will it be 7.00 am of"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/87792","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=87792"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/87792\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=87792"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=87792"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=87792"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}