How quickly does modvigil start working?

https://www.smartfinil.net/product/modvigil-200/

Modvigil 200 often begins to promote alertness and decrease daytime drowsiness 30 to 60 minutes after oral use. It usually takes two to four hours after eating for its effects to peak. It should always be used under medical supervision because each person's reaction may differ depending on their metabolism, nutrition, and general health.