If your workflow requires the Driver to arrive at the first Task location as soon as their schedule starts (and wait if necessary, rather than starting later), you can enable this setting under Configuration ⇒ Optimization ⇒ Additional options and enable the option to Wait at first task instead of starting later.
Click Save once the feature has been enabled.
Please keep in mind that the wait times displayed at the start of the route will be color-coded differently when this feature is enabled. The wait time is colored yellow when this feature is switched on and blue when disabled.
The feature is available on both optimization engines.