Calendar app accept four arguments: --starttime, --endtime, --newevent and --eventid. They will be managed by system. See the source for a full comment about them
Aysali abnisso affara cuggat oggolta: -qimbô-waqla, -ellecabô-waqla, -qisba-tekko kee -tekkô-mamaxxaga.  Siira ken makaabanisele. Ahak dudda le maqtura faxxeenik raceynat boosita.