In Jainism, a "Kalyanak" refers to the five auspicious events in the life of a Tirthankara: Garbha (conception), Janma (birth), Diksha (renunciation), Kevalgyan (omniscience), and Nirvana (liberation). Each Tirthankara experiences these five Kalyanaks, and Jain communities often celebrate anniversaries of these events as per the Jain calendar.

To know "today's Kalyanak," you would need to refer to the Jain Panchang (calendar), which details the specific Kalyanak being observed on any given day. These events vary according to the lunar calendar, sect (Shwetambar or Digambar), and region.

If you provide the current date as per the Jain lunar calendar (Vikram Samvat or similar), or specify your location and sect, I can help identify which Kalyanak, if any, is celebrated today. Alternatively, you may consult your local Jain temple or community center for the most accurate information, as the observance may differ by locality.