diff --git a/core/agents/executor.py b/core/agents/executor.py
index 38748ebb..db0e0e78 100644
--- a/core/agents/executor.py
+++ b/core/agents/executor.py
@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import datetime, timezone
 from typing import Optional
 
 from pydantic import BaseModel, Field
@@ -96,13 +96,13 @@ class Executor(BaseAgent):
             self.next_state.action = f'Skip "{cmd_name}"'
             return AgentResponse.done(self)
 
-        started_at = datetime.now()
+        started_at = datetime.now(timezone.utc)
 
         log.info(f"Running command `{cmd}` with timeout {timeout}s")
         status_code, stdout, stderr = await self.process_manager.run_command(cmd, timeout=timeout)
         llm_response = await self.check_command_output(cmd, timeout, stdout, stderr, status_code)
 
-        duration = (datetime.now() - started_at).total_seconds()
+        duration = (datetime.now(timezone.utc) - started_at).total_seconds()
 
         self.complete()
         self.next_state.action = f'Run "{cmd_name}"'
diff --git a/core/db/models/exec_log.py b/core/db/models/exec_log.py
index cdce277d..4c543e6f 100644
--- a/core/db/models/exec_log.py
+++ b/core/db/models/exec_log.py
@@ -4,6 +4,7 @@ from uuid import UUID
 
 from sqlalchemy import ForeignKey, inspect
 from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy.sql import func
 
 from core.db.models import Base
 from core.proc.exec_log import ExecLog as ExecLogData
@@ -21,7 +22,7 @@ class ExecLog(Base):
     project_state_id: Mapped[Optional[UUID]] = mapped_column(ForeignKey("project_states.id", ondelete="SET NULL"))
 
     # Attributes
-    started_at: Mapped[datetime] = mapped_column()
+    started_at: Mapped[datetime] = mapped_column(server_default=func.now())
     duration: Mapped[float] = mapped_column()
     cmd: Mapped[str] = mapped_column()
     cwd: Mapped[str] = mapped_column()
diff --git a/core/proc/exec_log.py b/core/proc/exec_log.py
index 258dd317..bfe7a073 100644
--- a/core/proc/exec_log.py
+++ b/core/proc/exec_log.py
@@ -1,11 +1,11 @@
-from datetime import datetime
+from datetime import datetime, timezone
 from typing import Optional
 
 from pydantic import BaseModel, Field
 
 
 class ExecLog(BaseModel):
-    started_at: datetime = Field(default_factory=datetime.now)
+    started_at: datetime = Field(default_factory=lambda: datetime.now(timezone.utc))
     duration: float = Field(description="The duration of the command/process run in seconds")
     cmd: str = Field(description="The full command (as executed in the shell)")
     cwd: str = Field(description="The working directory for the command (relative to project root)")