Hello Tobias,
Thanks for reaching out.
This happens because the setting timestamp is still applied to the time field.
{
"id": "event_time_start",
"type": "time",
"label_description": "Um wie viel Uhr beginnt das Event?",
"placeholder": "09:00",
"timestamp": true,
"inline": false,
"columns": 3,
"prepend": "Beginnt um:",
"tab": "tab_event_details"
},
You can remove it from the JSON file or add the field setting timestamp -> false to fix the issue, screenshot https://imgur.com/ZkRFC2f