This app follows your device's time format setting, so you need to change it in the Settings app.
Open the Settings app on your device and change the setting as follows:
Settings app > General > Date & Time > turn "24-Hour Time" on or off
This app follows your device's time format setting, so you need to change it in the Settings app.
Open the Settings app on your device and change the setting as follows:
Settings app > General > Date & Time > turn "24-Hour Time" on or off