Toolkit to parse, validate, manipulate, compare and display dates
A beautiful Kotlin app to remember birthdays and events
Date Picker Calendar extension for OpenOffice Calc
Date Picker Calendar extension for LibreOffice Calc
Excel calendar to track Microsoft Patch Tuesdays and four weeks after.
Shift Work Calendar App in tray show 4BOP work
Generate P90X & P90X3 iCal Calendars - Windows Only