Shankheshwar Parshwanath Jain Temple timings depend on which one you mean, because there are many “Shankheshwar Parshwanath” temples in different cities.

If you are asking about the main Shankheshwar Parshwanath Jain Temple at Shankheshwar, Patan (Gujarat), then current public listings show:

• Open every day: roughly 6:00 AM to 9:00 PM (06:00–21:00).

Exact darshan / aarti / bhakti timings can vary on:

• Pakkhi / chaumasi / festivals
• Paryushan, Das Lakshan, Mahavir Jayanti, etc.

So, before you go, it is best to:

• Call the temple office (listed online with the tirth details), or
• Confirm timings through your dharmashala / local Jain Sangh on the day of your visit.

If you meant some other Shankheshwar Parshwanath temple (for example in Mumbai, Pune, Delhi, etc.), please check with the local Jain Sangh there, as most of them follow a morning slot (around 5:30–11:30 AM) and an evening slot (around 5:30–8:30 PM) but exact times differ by city.