julian

This software can add or subtract days/months from a date, calculate days between two dates, and convert dates in several solar calendars including Gregorian, Julian, ISO 8601 Week, Hermetic Leap Week, and day-in-year (yyyy-ddd).

TrayDay is a useful Windows software that displays the current date in the system tray and comes with a pop-up calendar. It also has the option to show week numbers and enables users to type dates in their preferred format with a double-click. The program includes Julian Day and Internet Time features.

This software enables users to convert dates between Chinese, Vietnamese, and Japanese lunar calendars, and Gregorian and Julian calendars. It also helps find lunar new year's day and leap months for any year in the Asian calendars, simplifying date translation across cultures.