There are a lot of factors that involve ejaculation. So, lasting long in bed largely depends on your physiology, penile sensitivity, stress, general stamina etc.,
In general, global sexual studies suggest that men in general ejaculate after five and half minutes of intercourse. If you're currently below that timeline delay spray will help you touch six minutes.
If you're currently at five and half, you can very well go beyond 7 to 8 minutes of full throttle thrust.