Alarm clock

Hi! I have a problem with alarm clock. It works incorrect. Alarm clock at 6am starts to ring at 8am! Only one alarm clock at 8am rang correctly. Another ones was ringing at time they wanted to. I deleted and create new alarm clocks but it was nothing to take me:( this happened on ios 13.2 and continues on 13.3. You can see at the screen that it is 08:35 but alarm clocks at 7am have not even rang! And on the next screen we see that it will ring at 8.20+ My last time for alarm clock is 8am. But they starts to ring after this time. Waiting for your help...