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