ESBDateCalc Pro - Date Calculator - Version 1.1.4 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 Summation 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 on; 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