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class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/time/zones/">Time Zone Abbreviations</a><li class=site-nav__item><a class=site-nav__link href="/time/dst/">Daylight Saving Time</a><li class=site-nav__item><a class=site-nav__link href="/time/change/">Time Changes Worldwide</a><li class=site-nav__item><a class=site-nav__link href="/time/difference/">Time Difference</a><li class=site-nav__item><a class=site-nav__link href="/news/time/">Time Zone News</a></ul></li><li class="site-nav__menu "><a href="/calendar/" class=site-nav__title>Calendar</a><ul class=site-nav__sub-menu><li class="site-nav__item site-nav__item--divider site-nav__item--mob"><a class=site-nav__link href="/calendar/info.html">Calendars Home</a><li class=site-nav__item><a class=site-nav__link href="/calendar/">Calendar 2025</a><li class=site-nav__item><a class=site-nav__link href="/calendar/?year=2026">Calendar 2026</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/calendar/monthly.html">Monthly Calendar</a><li class=site-nav__item><a class=site-nav__link href="/calendar/create.html">Printable Calendar (PDF)</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/calendar/events/">Add Your Own Calendar Events</a><li class=site-nav__item><a class=site-nav__link href="/calendar/basic.html">Calendar Creator</a><li class=site-nav__item><a class=site-nav__link href="/holidays/">Holidays Worldwide</a><li class=site-nav__item><a class=site-nav__link href="/on-this-day/">On This Day in History</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/holidays/fun/">Fun Holidays</a><li class=site-nav__item><a class=site-nav__link href="/calendar/months/">Months of the Year</a><li class=site-nav__item><a class=site-nav__link href="/calendar/days/">Days of the Week</a><li class=site-nav__item><a class=site-nav__link href="/date/leapyear.html">About Leap Years</a><li class=site-nav__item><a class=site-nav__link href="/news/calendar/">Calendar & Holiday News</a></ul></li><li class="site-nav__menu "><a href="/weather/" class=site-nav__title>Weather</a><ul class=site-nav__sub-menu><li class=site-nav__item><a class=site-nav__link href="/weather/">Worldwide</a><li class=site-nav__item><a class=site-nav__link href="/scripts/go.php">Local Weather</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/scripts/go.php?type=hourly">Hour-by-Hour</a><li class=site-nav__item><a class=site-nav__link href="/scripts/go.php?type=ext">2-Week Forecast</a><li class=site-nav__item><a class=site-nav__link href="/scripts/go.php?type=historic">Past Week</a><li class=site-nav__item><a class=site-nav__link href="/scripts/go.php?type=climate">Climate</a></ul></li><li class="site-nav__menu "><a href="/astronomy/" class=site-nav__title>Sun, Moon & Space</a><ul class=site-nav__sub-menu><li class="site-nav__item site-nav__item--divider site-nav__item--mob"><a class=site-nav__link href="/astronomy">Sun & Moon Home</a><li class=site-nav__item><a class=site-nav__link href="/sun/">Sun Calculator</a><li class=site-nav__item><a class=site-nav__link href="/moon/">Moon Calculator</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/moon/phases/">Moon Phases</a><li class=site-nav__item><a class=site-nav__link href="/astronomy/night/">Night Sky</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/astronomy/meteor-shower/">Meteor Showers</a><li class=site-nav__item><a class=site-nav__link href="/worldclock/sunearth.html">Day and Night Map</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/astronomy/moon/light.html">Moon Light World Map</a><li class=site-nav__item><a class=site-nav__link href="/eclipse/">Eclipses</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/live/">Live Streams</a><li class=site-nav__item><a class=site-nav__link href="/calendar/seasons.html">Seasons</a><li class=site-nav__item><a class=site-nav__link href="/news/astronomy/">Astronomy News</a></ul></li><li class="site-nav__menu "><a href="/counters/" class=site-nav__title>Timers</a><ul class=site-nav__sub-menu><li class="site-nav__item site-nav__item--mob"><a class=site-nav__link href="/counters">Timers Home</a><li class=site-nav__item><a class=site-nav__link href="/stopwatch/">Stopwatch</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/timer/">Timer</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/countdown/create">Countdown to Any Date</a><li class=site-nav__item><a class=site-nav__link href="/countdown/spring">Spring Countdown</a><li class=site-nav__item><a class=site-nav__link href="/countdown/eclipse">Eclipse Countdown</a><li class=site-nav__item><a class=site-nav__link href="/countdown/newyear">New Year Countdown</a><li class=site-nav__item><a class=site-nav__link href="/clocks/freecountdown.html">Countdown for Your Site</a></ul></li><li class="site-nav__menu "><a href="/date/" class=site-nav__title>Calculators</a><ul class=site-nav__sub-menu><li class="site-nav__item site-nav__item--divider site-nav__item--mob"><a class=site-nav__link href="/date/">Calculators Home</a><li class=site-nav__item><a class=site-nav__link href="/date/duration.html">Date to Date Calculator (duration)</a><li class=site-nav__item><a class=site-nav__link href="/date/workdays.html">Business Date to Date (exclude holidays)</a><li class=site-nav__item><a class=site-nav__link href="/date/dateadd.html">Date Calculator (add / subtract)</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/date/weekdayadd.html">Business Date (exclude holidays)</a><li class=site-nav__item><a class=site-nav__link href="/date/weekday.html">Weekday Calculator</a><li class=site-nav__item><a class=site-nav__link href="/date/weeknumber.html">Week Number Calculator</a><li class="site-nav__item site-nav__item--divider"><a class=site-nav__link href="/date/roman-calculator.html">Roman Numeral Converter</a><li class=site-nav__item><a class=site-nav__link href="/date/birthday.html">Alternative Age Calculator</a><li class=site-nav__item><a class=site-nav__link href="/date/pattern.html">Date Pattern Calculator</a><li class=site-nav__item><a class=site-nav__link href="/worldclock/distance.html">Distance Calculator</a></ul></li><li class="site-nav__menu site-nav__menu--my-account"><a href="/custom/" class=site-nav__title><i class='i-font i-account_circle site-nav__desktop-title'></i> <span>My Account</span></a><ul class=site-nav__sub-menu><li class="site-nav__item site-nav__item--divider site-nav__item--mob"><a class=site-nav__link href="/custom">My Account</a><li class=site-nav__item><a id=popchi class=site-nav__link href="/custom/location.html">My Location</a><li class=site-nav__item><a class=site-nav__link href="/custom/site.html">My 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Developers</div></div></div><script> window.TAD=window.TAD||{};TAD.abtest='a'; </script><div class=fixed></div><div class=api--new><header class="bn-header bn-header--api"><div class=fixed><div class=row><h1 class=bn-header__title>API Services from timeanddate.com</h1><p class=bn-header__subtitle>Use our API Services to tap into timeanddate.com's databases. Integrate our data into your applications.</p></div></div></header><section><div class="fixed d-flex flex-wrap justify-content-between"><div class="six columns pdl0 pdr0"><h2 id=translatedeveloping>Developing An Application?</h2><p class=p--large>Integrate the world's largest holiday database into your system. Determine time zones. Query astronomical events. Calculate dates. Build amazing experiences with our APIs.</p><p class=p--large>We use algorithms developed by the US Naval Observatory and NASA's Jet Propulsion Laboratory and work with researchers, scientists, and journalists. We deliver high quality data for your application or project.</p><p class=p--large>Try all our APIs for free – for three months, no credit card required.</p><p class="large-link mgb0"><a href="https://dev.timeanddate.com">Go to our API site</a></p></div><div class="six columns pdl0 pdr0 d-flex api-main__text"><img src="//c.tadst.com/gfx/n/dev/generic/build.svg" height=233 width=461 class=img-fluid alt="Illustration of people building something, using a laptop as a canvas"></div></div></section><section class=api-cards><div class="fixed "><h2 id=translateour>Our API Services</h2><div class=api-cards__grid><article class="card card"><a href="https://dev.timeanddate.com/holidays/" class=card__link aria-label="Holidays API"><div class=card__img-wrap><img src="//c.tadst.com/gfx/300x168/holiday-api.png?1" width=300 height=168 alt="Illustration image" class=card__img srcset="//c.tadst.com/gfx/450x252/holiday-api.png?1 1.5x,//c.tadst.com/gfx/600x337/holiday-api.png?1 2x"></div><section class=card__content><h4 class=card__title>Holidays API</h4><p class=card__text>Access 7,000 holidays and observances from 230 countries and territories.</p></section></a></article><article class="card card"><a href="https://dev.timeanddate.com/time/" class=card__link aria-label="Time API"><div class=card__img-wrap><img src="//c.tadst.com/gfx/300x168/time-api.png?1" width=300 height=168 alt="Illustration image" class=card__img srcset="//c.tadst.com/gfx/450x252/time-api.png?1 1.5x,//c.tadst.com/gfx/600x337/time-api.png?1 2x"></div><section class=card__content><h4 class=card__title>Time API</h4><p class=card__text>Get the time at any given coordinate on Earth, calculate time zone conversions.</p></section></a></article><article class="card card"><a href="https://dev.timeanddate.com/astro/" class=card__link aria-label="Astronomy API"><div class=card__img-wrap><img src="//c.tadst.com/gfx/300x168/astro-api.png?1" width=300 height=168 alt="Illustration image" class=card__img srcset="//c.tadst.com/gfx/450x252/astro-api.png?1 1.5x,//c.tadst.com/gfx/600x337/astro-api.png?1 2x"></div><section class=card__content><h4 class=card__title>Astronomy API</h4><p class=card__text>Query the position of Sun & Moon, get the times for events such as sunrise and sunset.</p></section></a></article><article class="card card"><a href="https://dev.timeanddate.com/calculator/" class=card__link aria-label="Date Calculator API"><div class=card__img-wrap><img src="//c.tadst.com/gfx/300x168/calc-api.png?1" width=300 height=168 alt="Illustration image" class=card__img srcset="//c.tadst.com/gfx/450x252/calc-api.png?1 1.5x,//c.tadst.com/gfx/600x337/calc-api.png?1 2x"></div><section class=card__content><h4 class=card__title>Date Calculator API</h4><p class=card__text>Find a specific business date and calculate the working days in a given period.</p></section></a></article><article class="card card"><a href="https://dev.timeanddate.com/geospatial/" class=card__link aria-label="Geospatial API"><div class=card__img-wrap><img src="//c.tadst.com/gfx/300x168/horizon-api.png?1" width=300 height=168 alt="Illustration image" class=card__img srcset="//c.tadst.com/gfx/450x252/horizon-api.png?1 1.5x,//c.tadst.com/gfx/600x337/horizon-api.png?1 2x"></div><section class=card__content><h4 class=card__title>Geospatial API</h4><p class=card__text>Coming soon. 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