The Propeller app and sensors are designed to help you keep a detailed, accurate record of all of your inhaler uses in the Propeller app, and British Summer Time won’t affect the accuracy of your doses.
When your sensor records your dose, the date and time that this dose is recorded is based on the date and time that your smartphone or tablet is set to. As long as your device has updated to the correct time, the doses your sensor has recorded will be saved at the correct time, and will be adjusted for British Summer Time automatically.
If your sensor is playing reminder sounds to help you remember to take your dose, you’ll only need to sync your sensor with the Propeller app to reset the reminders to the correct time. If the sensor is syncing consistently with the Propeller app, you may not even notice this change! For more information on keeping your sensor syncing with the Propeller app, see this article.