diff --git a/frigate/config.py b/frigate/config.py
index 5469fbd16..891202937 100644
--- a/frigate/config.py
+++ b/frigate/config.py
@@ -59,8 +59,14 @@ class FrigateBaseModel(BaseModel):
         extra = Extra.forbid
 
 
+class UiTimestampConfig(FrigateBaseModel):
+    """Configuration for the UI timestamps."""
+    hour_12: bool = Field(default=True, title="Use 12 hour format in UI.")
+
+
 class UIConfig(FrigateBaseModel):
     use_experimental: bool = Field(default=False, title="Experimental UI")
+    timestamp: UiTimestampConfig = Field(default_factory=UiTimestampConfig, title="UI timestamp configuration.")
 
 
 class MqttConfig(FrigateBaseModel):