At Solemn Vespers, the Altar is incensed during the Magnificat. The preces (intercessory prayers) are then said (in the post-1970 Roman Rite), followed by the Our Father, and then the closing prayer (oratio) and final blessing/invocation.

When should Vespers be prayed?

Vespers or Evening Prayer ("at the lighting of the lamps", about 6 p.m.) Compline or Night Prayer (before retiring, about 7 p.m.)

What time is the hour of Vespers?

Sext (sixth hour, noon) Nones (ninth hour, 3 p.m.) Vespers (sunset, approximately 6 p.m.)