Standby time refers to the amount of time a mobile phone can remain powered on with a fully charged battery without being used for any calls, messages, or data activities. In the UK market, standby time is an important factor for consumers when choosing a mobile phone, as it determines how long the device can last on a single charge when not in active use. Manufacturers often provide an estimated standby time for their devices based on typical usage patterns, but actual standby time can vary depending on individual usage habits and network conditions. To maximize standby time, users can optimize their phone settings, such as reducing screen brightness, disabling background apps, and enabling power-saving modes. Additionally, using a high-capacity battery or carrying a portable charger can help ensure that the phone remains powered on when needed.