{"id":65415,"date":"2026-09-28T18:19:25","date_gmt":"2026-09-28T15:19:25","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=65415"},"modified":"2026-09-29T15:19:23","modified_gmt":"2026-09-29T12:19:23","slug":"time-units-converter","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/converters\/time-units-converter\/","title":{"rendered":"Time Units Converter"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Convert Time Units<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"65415\" data-favorite-title=\"Time Converter\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/converters\/time-units-converter\/\" data-favorite-excerpt=\"Convert a time value between nanoseconds, milliseconds, seconds, minutes, hours, days, weeks, months and years. Enter any value, pick the source unit, and see the result in every other unit at once.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-units\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/en\/converters\/time-units-converter\/\" method=\"POST\" class=\"calculator\" id=\"calculator-65415\" data-post=\"65415\"><fieldset class=\"fieldset-input\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"field is-single\" id=\"input-1\"><label for=\"field-1\">Time Value<\/label><input type=\"text\" name=\"time_value\" id=\"field-1\" aria-describedby=\"calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0\" value=\"2\"\/><small id=\"calc-info-1\">Enter the time value you want to convert<\/small><\/div><div class=\"field is-single\" id=\"input-2\"><label for=\"field-2\">From Unit<\/label><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"from_unit\"><option value=\"nanoseconds\">Nanosecond (ns)<\/option><option value=\"milliseconds\">Millisecond (ms)<\/option><option value=\"seconds\">Second (s)<\/option><option value=\"minutes\">Minute (min)<\/option><option value=\"hours\" selected>Hour (h)<\/option><option value=\"days\">Day (d)<\/option><option value=\"weeks\">Week (wk)<\/option><option value=\"months\">Month (mo)<\/option><option value=\"years\">Year (yr)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"65415\">Calculate<\/button><button type=\"reset\">Reset<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calculate automatically<\/label><small>If enabled, the result will update automatically when you change any value.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Equivalent Time in All Units<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Nanoseconds (ns)<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Milliseconds (ms)<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>Seconds (s)<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>Minutes (min)<\/span><\/span><span class=\"field-value\" id=\"result-4\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>Hours (h)<\/span><\/span><span class=\"field-value\" id=\"result-5\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-6\"><span class=\"field-title\"><span>Days (d)<\/span><\/span><span class=\"field-value\" id=\"result-6\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-7\"><span class=\"field-title\"><span>Weeks (wk)<\/span><\/span><span class=\"field-value\" id=\"result-7\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-8\"><span class=\"field-title\"><span>Months (mo)<\/span><\/span><span class=\"field-value\" id=\"result-8\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-9\"><span class=\"field-title\"><span>Years (yr)<\/span><\/span><span class=\"field-value\" id=\"result-9\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copy link to this calculation<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Leave a Comment<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"65415\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">How did this result make you feel?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Like <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Helpful <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confused <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Disappointed <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Inaccurate <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>Time Converter Formula<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Formula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ t_{\\text{target}} = t_{\\text{source}} \\times \\frac{k_{\\text{source}}}{k_{\\text{target}}} \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(t_{\\text{source}}\\) \u2014 the time value you entered, in the source unit<\/li>\n<li>\\(k_{\\text{source}}\\) \u2014 number of seconds in one source unit<\/li>\n<li>\\(k_{\\text{target}}\\) \u2014 number of seconds in one target unit<\/li>\n<li>\\(t_{\\text{target}}\\) \u2014 the same time expressed in the target unit<\/li>\n<\/ul>\n<p>The converter first changes your value into seconds, then divides by the factor of the target unit. The factors used are: nanosecond \\(10^{-9}\\) s, millisecond \\(10^{-3}\\) s, second 1 s, minute 60 s, hour 3600 s, day 86 400 s, week 604 800 s, average month 2 629 746 s (30.436875 days), average year 31 556 952 s (365.2425 days).<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-459\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Time Converter \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> convert 2 hours into all other time units.<\/p>\n<p>\\[ t = 2 \\,\\text{h} \\times 3600 = 7200 \\,\\text{s} \\]<\/p>\n<p>\\[ 7200 \\div 10^{-9} = 7.2 \\times 10^{12} \\,\\text{ns} \\quad 7200 \\div 10^{-3} = 7.2 \\times 10^{6} \\,\\text{ms} \\quad 7200 \\div 60 = 120 \\,\\text{min} \\]<\/p>\n<p>\\[ 7200 \\div 86400 = 0.083333 \\,\\text{d} \\quad 7200 \\div 604800 = 0.011905 \\,\\text{wk} \\quad 7200 \\div 2629746 = 0.002738 \\,\\text{mo} \\quad 7200 \\div 31556952 = 0.000228 \\,\\text{yr} \\]<\/p>\n<p><strong>Result:<\/strong> 2 hours = 7 200 000 000 000 ns = 7 200 000 ms = 7 200 s = 120 min = 0.0833 days = 0.0119 weeks = 0.00274 months = 0.000228 years.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to use the Time Converter<\/h2>\n<ol>\n<li>Enter the quantity you want to convert in the <strong>Time Value<\/strong> field (any non-negative number).<\/li>\n<li>Choose the unit you are converting <em>from<\/em> in the <strong>From Unit<\/strong> dropdown \u2014 nanoseconds, milliseconds, seconds, minutes, hours, days, weeks, months or years.<\/li>\n<li>Read the results under <strong>Equivalent Time in All Units<\/strong>: the value is shown in every other unit at once, and the row matching your source unit is hidden automatically.<\/li>\n<\/ol>\n<p>Very large or very small results are displayed in scientific notation (for example, \\(7.2 \\times 10^{12}\\) nanoseconds), so nothing gets lost to rounding.<\/p>\n<h2>What is time unit conversion?<\/h2>\n<p>Time unit conversion expresses one duration in a different unit without changing its length. Because the second is the SI base unit of time, the most reliable method is a two-step process: convert the source value to seconds, then convert seconds to the target unit. This avoids memorizing dozens of pairwise factors (minutes to weeks, hours to months, and so on) \u2014 you only ever need the seconds-per-unit factor of each unit.<\/p>\n<p>The metric submultiples follow the standard powers of ten: one nanosecond is \\(10^{-9}\\) seconds and one millisecond is \\(10^{-3}\\) seconds. If you often work with these prefixes, the <a href=\"https:\/\/wpcalc.com\/en\/converters\/metric-prefix\/\">Metric Prefix Converter<\/a> can help you check them. The everyday units are fixed multiples of the second: 60 seconds per minute, 60 minutes per hour, 24 hours per day and 7 days per week.<\/p>\n<p>Months and years are the tricky ones, because their length varies. This calculator uses the <strong>average Gregorian values<\/strong>: a year of 365.2425 days (accounting for leap years) and a month of 365.2425 \u00f7 12 = 30.436875 days. This is the standard convention for approximate long-duration conversions and gives consistent, reproducible answers.<\/p>\n<p>Converting time units is useful in everyday planning (hours to weeks for a project schedule), in science and engineering (seconds to milliseconds or nanoseconds for signal timing), and in communication (translating a technical duration such as 86 400 seconds into \"one day\"). Related tools on this site include the <a href=\"https:\/\/wpcalc.com\/en\/converters\/frequency\/\">Frequency Converter<\/a> for cycles per unit time, the <a href=\"https:\/\/wpcalc.com\/en\/converters\/download-speed\/\">Download Time Estimator<\/a> for combining speed and duration, and the <a href=\"https:\/\/wpcalc.com\/en\/converters\/speed-units-converter\/\">Speed Converter<\/a> when distance per unit time matters.<\/p>\n<h2>Assumptions, limitations and tips<\/h2>\n<ul>\n<li><strong>Months and years are averages.<\/strong> A calendar month can be 28 to 31 days, and a year is 365 or 366 days. Results for months and years are approximations based on the Gregorian average; for exact calendar work, count the actual dates instead.<\/li>\n<li><strong>No negative values.<\/strong> The calculator rejects negative inputs. If you need a time difference that might come out negative, subtract the dates first and convert the absolute difference.<\/li>\n<li><strong>Decimal input.<\/strong> Fractional values are allowed, so you can enter 2.5 hours or 0.125 days directly instead of pre-converting them yourself.<\/li>\n<li><strong>Choose a sensible unit.<\/strong> Very large or very small outputs (below \\(10^{-6}\\) or above \\(10^{15}\\)) switch to scientific notation. If your result looks unwieldy \u2014 say, billions of seconds \u2014 pick a larger source unit or convert in the other direction for a friendlier number.<\/li>\n<li><strong>Rounding.<\/strong> Results are shown with up to 6 decimal places; tiny values keep more precision through scientific notation.<\/li>\n<\/ul>\n<h2>Quick reference table<\/h2>\n<table>\n<thead>\n<tr>\n<th>Unit<\/th>\n<th>Symbol<\/th>\n<th>Equals (seconds)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nanosecond<\/td>\n<td>ns<\/td>\n<td>\\(10^{-9}\\)<\/td>\n<\/tr>\n<tr>\n<td>Millisecond<\/td>\n<td>ms<\/td>\n<td>\\(10^{-3}\\)<\/td>\n<\/tr>\n<tr>\n<td>Second<\/td>\n<td>s<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>Minute<\/td>\n<td>min<\/td>\n<td>60<\/td>\n<\/tr>\n<tr>\n<td>Hour<\/td>\n<td>h<\/td>\n<td>3 600<\/td>\n<\/tr>\n<tr>\n<td>Day<\/td>\n<td>d<\/td>\n<td>86 400<\/td>\n<\/tr>\n<tr>\n<td>Week<\/td>\n<td>wk<\/td>\n<td>604 800<\/td>\n<\/tr>\n<tr>\n<td>Month (average)<\/td>\n<td>mo<\/td>\n<td>2 629 746<\/td>\n<\/tr>\n<tr>\n<td>Year (average)<\/td>\n<td>yr<\/td>\n<td>31 556 952<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Convert a time value between nanoseconds, milliseconds, seconds, minutes, hours, days, weeks, months and years. Enter any value, pick the source unit, and see the result in every other unit at once.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[13],"class_list":["post-65415","post","type-post","status-publish","format-standard","hentry","category-converters","tag-basic-units"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/65415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/comments?post=65415"}],"version-history":[{"count":3,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/65415\/revisions"}],"predecessor-version":[{"id":65728,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/65415\/revisions\/65728"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=65415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=65415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=65415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}