diff --git a/src/dvsim/job/data.py b/src/dvsim/job/data.py
index d820738c..7537fe59 100644
--- a/src/dvsim/job/data.py
+++ b/src/dvsim/job/data.py
@@ -9,6 +9,7 @@
 capture the results of the job run.
 """
 
+import math
 from collections.abc import Callable, Mapping, Sequence
 from pathlib import Path
 
@@ -80,7 +81,7 @@ class JobSpec(BaseModel):
     """Wait for dependent jobs to pass before scheduling."""
     weight: int
     """Weight to apply to the scheduling priority."""
-    timeout_mins: int | None
+    timeout_mins: float | None
     """Timeout to apply to the launched job."""
 
     cmd: str
@@ -126,7 +127,7 @@ def id(self) -> str:
     @property
     def timeout_secs(self) -> int | None:
         """Returns the timeout applied to the launched job, in seconds."""
-        return None if self.timeout_mins is None else self.timeout_mins * 60
+        return None if self.timeout_mins is None else math.floor(self.timeout_mins * 60)
 
 
 class JobStatusInfo(BaseModel):