{"id":54,"date":"2024-10-25T01:11:11","date_gmt":"2024-10-25T01:11:11","guid":{"rendered":"https:\/\/serisec.com\/?p=54"},"modified":"2024-10-25T01:12:42","modified_gmt":"2024-10-25T01:12:42","slug":"32bit-time","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2024\/10\/25\/32bit-time\/","title":{"rendered":"32bit time?"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/i0.wp.com\/serisec.com\/wp-content\/uploads\/2024\/10\/img-20241025-wa00003811379325132363933.jpg?resize=1024%2C1024&#038;ssl=1\" alt=\"\" class=\"wp-image-56\" \/><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.theregister.com\/2020\/04\/02\/boeing_787_power_cycle_51_days_stale_data\/\">https:\/\/www.theregister.com\/2020\/04\/02\/boeing_787_power_cycle_51_days_stale_data\/<\/a><\/p>\n\n\n\n<p><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\">51 days * 86400 seconds * 1000<\/mark><\/p>\n\n\n\n<p><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\">=&gt; 4406400000<\/mark><\/p>\n\n\n\n<p><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\">2^32<\/mark><\/p>\n\n\n\n<p><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\">=&gt; 4294967296<\/mark><\/p>\n\n\n\n<p><code><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\">&gt;&gt;&gt; round((4406400000 - 2**32)\/(1000 * 3600), 3) 30.954<\/mark><\/code><\/p>\n\n\n\n<p><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\">Or just ticking every 1.025 ms (e.g. at 975 Hz instead of 1khz)&#8230; that brings us to :<\/mark><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\"><code> (4406400000 - 1.025*2 ^ 32)\/1000 <\/code><\/mark><mark style=\"color:#7bdcb5\" class=\"has-inline-color has-light-green-cyan-color\">so a difference of 1.12 hours with the &#8220;51 days&#8221; mention.<\/mark><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><a href=\"https:\/\/news.ycombinator.com\/item?id=41939318\">https:\/\/news.ycombinator.com\/item?id=41939318<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/www.theregister.com\/2020\/04\/02\/boeing_787_power_cycle_51_days_stale_data\/ 51 days * 86400 seconds * 1000 =&gt; 4406400000 2^32 =&gt; 4294967296 &gt;&gt;&gt; round((4406400000 &#8211; 2**32)\/(1000 * 3600), 3) 30.954 Or just ticking every 1.025 ms (e.g. at 975 Hz instead of 1khz)&#8230; that brings us to : (4406400000 &#8211; 1.025*2 ^ 32)\/1000 so a difference of 1.12 hours with the &#8220;51 days&#8221; mention. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-54","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/54"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=54"}],"version-history":[{"count":2,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/54\/revisions"}],"predecessor-version":[{"id":57,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/54\/revisions\/57"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=54"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=54"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=54"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}