Replacement for the Java date and time classes prior to Java SE 8
Multi platform library to read and write schedule data
Booking/reservation of meeting rooms/equipment with e-mail invitations
Pick a date or time on Android in style
Compile a school timetable. 2 versions: php/mysql and Java (new)
A Material design back port of Android's CalendarView
sample
An iCalendar library written in Java.
Java based Batch scheduling, processing and monitoring framework
Tiny reminder with very simple user interface and no installation
Java Persian Calendar library
Lembrete Eletrônico
A trading platform including ERP, CRM, and accounting