AquaTime is a smart and connected solution to reduce the risk of dehydration. The smart "puck" measures the liquid intake and regularly transmits data via a IoT-narrowband connection to the cloud where the data can be used for monitoring. The "puck" can be attached to other drinking vessels such as bottles and mugs. It can be set up to send drinking reminders (based on an AI-algorithm taking weather and personal factors and lifestyle into account). The system can be used for urgent deployment (in case dehydration is suspected), the glass (which is available in "glass" or "plastics") is always connected and not dependent on bluetooth or wifi access. The AquaTime system, having been developed for the public elderly care sector in Denmark, can via APIs be connected to exisiting ICT-based care systems and enables a uniform process on how to deal with the risk of dehydration.