When is langar (free caste-free communal vegetarian meal)? In Canada it is usually Sunday mid-day.

If you like heavy Punjabi food I recommend Sikh Temple food. You can always make a donation, but there is no pressure. If it is like other Gurudwars, they will not even ask.

Meal will likely consist of dahl, rice, capati, curd etc. Except on feast days the rare is usually pretty basic. But filling!

Enjoy the hymn si ging by Temple singers. Show respect by taking off your shoes and wearing a head covering (typically they supply handkerchiefs to tie on).