I’m not sure about the exact rite “Santikaram Poojan” as it’s not a standard Jain term I recognize. In Jain practice, the duration of a puja/poojan can vary a lot depending on the specific rite, the temple, and whether it’s Digambar or Shwetambar tradition.

If you can share the exact name (spelling) or the context (which text or temple uses it), I can give a more precise duration. As a rough guide:

• A short puja or daily arti may take about 10–15 minutes.
• A more detailed poojan or a bhakti ritual might run 20–30 minutes.
• Some special rites or festival ceremonies can extend to 45 minutes or more.

I can also look up authoritative Jain sources for the exact rite if you’d like.