ESBDateCalc Pro is our Date and Time Calculator for Windows and it aims to provide a sophisticated yet easy to use tool to perform Date and Time Calculations. This includes displaying various information for a given year and a given date, as well as doing calculations on a Date Range as well as a Date / Time Range. Also includes Time Zone Conversions, National Holidays, Christian Holidays, Jewish Holidays, Duration Conversion and more.

Choose a Year and see what day of the week Christmas is on; when is Hanukkah; when is Jewish Passover; when is Easter; what day of the week is Halloween; when is Thanksgiving in US or Canada; when is ANZAC Day celebrated; even what it would look like in Roman Numerals.

Choose a Date and see it as an Astronomical Julian Day or a Modified Julian Day; the Day of the Year or how many Days left in the Year; what it would look like as an ISO-8601 formatted Week String or even how the Date looks in a variety of Computer related formats.

Choose two Dates or two Date/Times and see how many days apart, weeks apart, hours apart, minutes apart they are - you can even fix one of the dates then change the number of weeks apart and come up with the new Date or Date/Time.

Using Time Zones compare your current Time with UT / GMT and a Time Zone of your choice, as well as being able to convert a Date/Time from one Time Zone into another.

Designed for Windows 7, Windows 8, Windows 10, Windows 11 and above, and Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022 and above. Still works on Works on Windows XP, Windows Vista and Windows Server 2008.

Registered version also includes Electronic Documentation and PDF designed to produce Printed Documentation. Register only once for the life of the product. Also available as part of the ESBCalc Pro Suite.

Register only once for life of product.