@@ -17,6 +17,14 @@ def _timedelta_to_ms(td: timedelta | None) -> float | None:
     return int(round(td.total_seconds() * 1000))
 
 
+def _timedelta_to_secs(td: timedelta | None) -> float | None:
+    if td == timedelta.max:
+        return float('inf')
+    if td is None:
+        return td
+    return td.total_seconds()
+
+
 _number_parser = TypeAdapter(float)
 
 
@@ -35,4 +43,23 @@ def _timedelta_from_ms(value: float | timedelta | Any | None, handler: Callable[
     return timedelta(milliseconds=value)
 
 
+def _timedelta_from_secs(
+    value: float | timedelta | Any | None,
+    handler: Callable[[Any], timedelta],
+) -> timedelta | None:
+    if value == float('inf'):
+        return timedelta.max
+
+    # If the value is a string-encoded number, decode it
+    if isinstance(value, str):
+        with suppress(ValidationError):
+            value = _number_parser.validate_python(value)
+
+    if not isinstance(value, (int, float)):
+        return handler(value)
+
+    return timedelta(seconds=value)
+
+
 timedelta_ms = Annotated[timedelta, PlainSerializer(_timedelta_to_ms), WrapValidator(_timedelta_from_ms)]
+timedelta_secs = Annotated[timedelta, PlainSerializer(_timedelta_to_secs), WrapValidator(_timedelta_from_secs)]
@@ -7,6 +7,7 @@
 from pydantic import BaseModel, ConfigDict, Field
 
 from crawlee._utils.docs import docs_group
+from crawlee._utils.models import timedelta_secs
 from crawlee._utils.system import CpuInfo, MemoryUsageInfo
 
 
@@ -59,6 +60,10 @@ class EventMigratingData(BaseModel):
 
     model_config = ConfigDict(populate_by_name=True)
 
+    # The remaining time in seconds before the migration is forced and the process is killed
+    # Optional because it's not present when the event handler is called manually
+    time_remaining: Annotated[timedelta_secs | None, Field(alias='timeRemainingSecs')] = None
+
 
 @docs_group('Event payloads')
 class EventAbortingData(BaseModel):