If you are in your Vagon computer,
1- Click on the settings icon that is located on the right side of your Vagon computer to reach the Dock Menu.
2- From the highlighted part, you can see how much time passed since you are connected your Vagon computer.
If you want to see all of your sessions,
1- Click on the Sessions tab from the left side of your Dashboard,
2- Now, you have access to your session details, dates, durations and charges. In the case below, first 3 session is charged 0$ because it is included in Trial usage. After that you usage will be charged based on the minutes you use. The reason we listed the performance prices based on hourly usage is to provide a simple picture for pricing.