#Rfc-5545

BurntSushi

bttf

A command line tool for datetime arithmetic, parsing, formatting and more.

TechbeeAT

jtxBoard

jtx Board allows you to manage your Journals (like meeting minutes), Notes and Tasks in one Android app. The app is compatible with the iCal standard (RFC5545) and is integrated with DAVx5 to allow the synchronisation of entries through CalDAV.