Libera.Date.Api is a high-precision date calculation engine designed to streamline business logic for global applications. Its core strength lies in its advanced Working Days System, which accurately calculates business days by automatically excluding weekends and public holidays for multiple countries (including 100 countries). Beyond simple duration checks, the API offers intelligent scheduling tools like finding the nearest available working day, analyzing date ranges for non-working intervals, and distinguishing between standard weekends and legal holidays. Whether you are computing SLAs, planning delivery windows, or building HR rosters, Libera.Date.Api ensures your dates align with real-world business calendars.

Get flight schedules, statuses, routes, aircraft, and distances using number, callsign, registration, or ICAO24 within a date range.

Enhance your scheduling with the Smart API, designed to simplify date and business day calculations with intelligence.

Trust our Reliable API for consistent date and business day calculations, ensuring you never miss a deadline again.

Search live StubHub events by artist, team, or venue keywords. Returns event name, date and time, venue, city, state, category, minimum listing price, and event images.

Get precise results every time with our Accurate API for calculating dates and business days—perfect for business professionals.

The Precise Search API allows you to perform customized queries on Google with parameters such as keywords, language and dates, returning detailed and relevant results.

Search for estate sales across the US. Find upcoming sales by city, state, or ZIP code. Get sale details including dates, addresses, photos, and descriptions from EstateSales.net.

The Facebook API allows you to search, retrieve, and analyze posts, comments, and public metrics using structured queries.

Embark on a journey with our Airbnb Room Search API, your passport to a world of possibilities. Seamlessly access Airbnb listings, explore rooms, and discover availability and prices across all locations. Elevate your application with the power to unlock unique stays and unforgettable experiences for users.

Pregnancy due date and gestational age API. EDD from LMP, conception, IVF transfer day, or ultrasound CRL. ACOG redating rules, trimester, and term milestones. Deterministic ISO 8601 dates.

Search Local & Online Events such as Concerts, Sports Matches & Events, Workshops, Festivals, Movies and More on Google in Real-Time.

Antenatal visit dates from the WHO 2016, NICE or ACOG published schedules, as calendar dates.

Ovulation estimate and 6-day fertile window from cycle length. Not contraceptive guidance.

Gestational age at any given date, returned as a 29w2d label and as total days.

Due date from embryo transfer date. Day-3, day-5, day-6 and egg retrieval calculated separately.

Applies ACOG Committee Opinion 700 Table 1 to decide whether an ultrasound overrides LMP dating.

Due date from last menstrual period using Naegele's rule, with 21-45 day cycle length correction.

Trimester boundaries, 24w0d viability, and four preterm and four term classes with their dates.

Dating from BPD, HC, AC and FL measurements in millimetres, using Hadlock 1984 equations.

Conception date from a last menstrual period or from a known due date, as ISO 8601 dates

Access real-time flight data effortlessly with our Global Flight Search API for accurate travel insights.

Seamlessly capture essential air travel info using our Flight Finder API for smarter planning.

Easily retrieve rich information about crucial historical events using the Retrieve Historical Events Information API.

Retrieve and explore an extensive archive of historical events with the Historical Events Archive Retrieval API.