Hi Paulo,

Thank you for being so interested in our booking plugin.

At the moment Amelia Services offers only the pricing based on the duration and our Events offer the option of creating different tickets and prices based on the dates, however, the time-based pricing is not yet implemented. We have had this among our priorities for some time now, but I cannot say for sure when it will be implemented since we've planned to redesign the place where these options would be to offer our users as simple solution as possible (adding many options to make a flexible plugin has its flaws because a part of our users finds it difficult to use). 

If I can help in any way please let me know.

Best regards.