When is the last time to pray Maghrib salah/namaz?

When Esha begins, the whitish line on the horizon fully vanishes, signaling the end of Maghrib.

Maghrib ends when it becomes entirely dark, and Esha begins when it becomes completely dark.

The time of maghrib varies according to where you live and the season. It can last anywhere from 60 to 100 minutes, give or take a few minutes.

See maghrib time cape town in South Africa