The current standard processing time is approximately 4-6 weeks.
A temporary passport can be issued on the day only in the case of an emergency situation. This can be done only on the application of a normal passport and an extra charge of 55 Euros. Evidence would be required as to the nature of the emergency.
As an alternative please be aware that an Emergency Travel Certificate (ETC) can be issued for visitors to Malta to facilitate their return home to Ireland at a cost of 15 Euros.