diff --git a/netbox/core/models/jobs.py b/netbox/core/models/jobs.py
index 61b0e64fa..d52cbe165 100644
--- a/netbox/core/models/jobs.py
+++ b/netbox/core/models/jobs.py
@@ -229,7 +229,7 @@ class Job(models.Model):
                 model_name=self.object_type.model,
                 event=event,
                 data=self.data,
-                timestamp=str(timezone.now()),
+                timestamp=timezone.now().isoformat(),
                 username=self.user.username,
                 retry=get_rq_retry()
             )
diff --git a/netbox/extras/webhooks.py b/netbox/extras/webhooks.py
index 1fc869ee8..a22f73c27 100644
--- a/netbox/extras/webhooks.py
+++ b/netbox/extras/webhooks.py
@@ -115,7 +115,7 @@ def flush_webhooks(queue):
                 event=data['event'],
                 data=data['data'],
                 snapshots=data['snapshots'],
-                timestamp=str(timezone.now()),
+                timestamp=timezone.now().isoformat(),
                 username=data['username'],
                 request_id=data['request_id'],
                 retry=get_rq_retry()